2023 in arthropod paleontology

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2023 in arthropod paleontology is a list of new arthropod fossil taxa, including arachnids, crustaceans, trilobites, and other arthropods (except insects, which have their own list) that were announced or described, as well as other significant arthropod paleontological discoveries and events which occurred in 2023.

Chelicerates

Arachnids

Name	Novelty	Status	Authors	Age	Type locality	Country	Notes
Ajkagarypinus[1]	Gen. et sp. nov		Novák et al.	Late Cretaceous (Santonian)	Ajka Coal Formation	Hungary	A pseudoscorpion belonging to the family Garypinidae. The type species is A. stephani.
Archaeocroton kaufmani[2]	Sp. nov	Valid	Chitimia-Dobler, Mans & Dunlop in Chitimia-Dobler et al.	Cretaceous	Burmese amber	Myanmar	A hard tick. Announced in 2022; the final article version was published in 2023.
Archaeoscorpiops grossei[3]	Sp. nov	Valid	Lourenço in Lourenço & Velten	Cretaceous	Burmese amber	Myanmar	A scorpion belonging to the family Palaeoeuscorpiidae.
Arthrolycosa wolterbeeki[4]	Sp. nov	Valid	Dunlop	Carboniferous (Moscovian)	Osnabrück Formation	Germany	A spider belonging to the family Arthrolycosidae.
Betaburmesebuthus fuscus[5]	Sp. nov	Valid	Xuan, Cai & Huang	Cretaceous	Burmese amber	Myanmar	A scorpion belonging to the family Palaeoburmesebuthidae.
Betaburmesebuthus villosus[5]	Sp. nov	Valid	Xuan, Cai & Huang	Cretaceous	Burmese amber	Myanmar	A scorpion belonging to the family Palaeoburmesebuthidae.
Bothriocroton muelleri[2]	Sp. nov	Valid	Chitimia-Dobler, Mans & Dunlop in Chitimia-Dobler et al.	Cretaceous	Burmese amber	Myanmar	A hard tick. Announced in 2022; the final article version was published in 2023.
Chthonius marusiki[6]	Sp. nov		Turbanov et al.	Eocene	Rovno amber	Ukraine	A pseudoscorpion, a species of Chthonius.
Cretaceousbuthus petersi[7]	Sp. nov	Valid	Lourenço in Lourenço & Velten	Cretaceous	Burmese amber	Myanmar	A scorpion belonging to the superfamily Buthoidea.
Crethypoctonus[8]	Gen. et sp. nov		Zhou et al.	Late Cretaceous (Cenomanian)	Burmese amber	Myanmar	A member of Uropygi belonging to the family Thelyphonidae. The type species is C. kachinus.
Eognosippus[9]	Gen. et sp. nov	Valid	Dunlop, Erdek & Bartel	Eocene (Lutetian)	Baltic amber	Europe (Baltic Sea region, possibly Kaliningrad Oblast, Russia)	A camel spider. The type species is E. fahrenheitiana.
Eomysmauchenius cretaceominimus[10]	Sp. nov		Peng et al.	Cretaceous	Burmese amber	Myanmar	A spider belonging to the family Archaeidae.
Foveacorpus[11]	Gen. et 2 sp. nov	Valid	Bartel, Dunlop & Giribet	Cretaceous	Burmese amber	Myanmar	A member of Opiliones belonging to the group Cyphophthalmi. Genus includes F. cretaceus and F. parvus.
Leptopsalis breyeri[11]	Sp. nov	Valid	Bartel, Dunlop & Giribet	Cretaceous	Burmese amber	Myanmar	A member of Opiliones belonging to the family Stylocellidae.
Megamonodontium[12]	Gen. et sp. nov	Valid	McCurry, Frese & Raven	Miocene	McGraths Flat site	Australia	A spider belonging to the family Barychelidae. The type species is M. mccluskyi.
Mesopsalis[11]	Gen. et sp. nov	Valid	Bartel, Dunlop & Giribet	Cretaceous	Burmese amber	Myanmar	A member of Opiliones belonging to the group Cyphophthalmi. Genus includes M. oblongus.
Parilisthelyphonus[13]	Gen. et sp. nov		Knecht et al.	Carboniferous (Moscovian)	Rhode Island Formation	United States ( Massachusetts)	A whip scorpion. The type species is P. bryantae.
Promacrothele[14]	Gen. et sp. nov		Tang, Engel & Yang in Tang et al.	Cretaceous	Burmese amber	Myanmar	A spider belonging to the family Macrothelidae. The type species is P. polyacantha.
Protobuthus ziliolii[15]	Sp. nov	Valid	Viaretti, Bindellini & Dal Sasso	Middle Triassic	Besano Formation	Italy	A scorpion belonging to the superfamily Buthoidea and the family Protobuthidae.
Sirocellus[11]	Gen. et sp. nov	Valid	Bartel, Dunlop & Giribet	Cretaceous	Burmese amber	Myanmar	A member of Opiliones belonging to the group Cyphophthalmi, with a combination of sironid and stylocellid traits. Genus includes S. iunctus.
Tyrannobunus[16]	Gen. et sp. nov	Valid	Bartel & Dunlop	Cretaceous	Burmese amber	Myanmar	A eupnoid harvestman. The type species is T. aculeus.
Unguicheylus[17]	Gen. et sp. nov	Valid	Khaustov, Vorontsov & Lindquist	Cretaceous (Albian–Cenomanian)	Taimyr amber	Russia	A mite belonging to the new family Unguicheylidae, which might belong to the superfamily Anystoidea. The type species is U. quadriocellatus.
Uropodella hoffeinsorum[18]	Sp. nov	Valid	Lindquist & Vorontsov	Eocene	Baltic amber	Usedom	A mite, a species of Uropodella.

Arachnid research

New specimens of Compluriscutula vetulum, providing new information on the morphology of this tick, are described from the Cretaceous amber from Myanmar by Chitimia-Dobler et al. (2023).[19]
A trigonotarbid arachnid specimen is described from the Carboniferous (Moscovian) Almazna Formation (Donetsk Oblast) by Dunlop & Dernov (2023), extending known distribution of trigonotarbids in Europe.[20]
A study on the anatomy and affinities of Geralinura brittanica and Proschizomus petrunkevitchi is published by Garwood & Dunlop (2023), who reinterpret P. petrunkevitchi as a whip scorpion rather than a stem-schizomid.[21]
Probable new specimen of Mesoproctus rowlandi, representing the first fossil whip scorpion specimen preserved with book lungs, is described from the Lower Cretaceous Crato Formation (Brazil) by Alberto et al. (2023).[22]
The first known male specimen of Strotarchus paradoxus is described from the Miocene Mexican amber by García-Villafuerte & Ibarra-Núñez (2023).[23]
A study on the phylogenetic relationships of extant and fossil members of Palpimanoidea is published by Wood & Wunderlich (2023), who interpret their findings as indicative of closer relationships of palpimanoids from the Cretaceous amber from Myanmar with the Gondwanan taxa, and indicative of dispersal of Gondwanan lineages through the Burma Terrane into the Holarctic in the Cretaceous.[24]
Richardson, McCurry & Frese (2023) describe fossil material of a member of the genus Simaetha from the Miocene of Australia, interpreted as consistent with the molecular-based studies indicating that the radiation of the astioid jumping spiders at the Oligocene/Miocene transition happened in Australasia.[25]

Eurypterids

Name	Novelty	Status	Authors	Age	Type locality	Country	Notes	Images
Archopterus[26]	Gen et sp. nov	Valid	Wang et al.	Ordovician	Wenchang Formation	China	Likely the oldest adelophthalmid. The type species is A. anjiensis.

Xiphosuran research

A study on the evolution of the developmental patterns of xiphosurans is published by Lustri et al. (2023), who find evidence of changes in the allometric growth of xiphosurans related to adaptations to different environments, but also report that the studied changes were relatively minor compared to the diversity of patterns of allometric growth observed in eurypterids and chasmataspidids.[27]
Klompmaker et al. (2023) describe a specimen of Limulitella bronnii from the Anisian Muschelkalk sediments of the Vossenveld Formation (Netherlands), extending known temporal range of this species, and provide the diagnosis of L. bronnii for the first time.[28]

Other chelicerates

Siveter et al. (2023) describe two new specimens of Haliestes dasos from the Silurian Coalbrookdale Formation (United Kingdom), interpret their anatomy as indicative of adaptation of the studied species to a different mode of feeding than in living sea spiders, as well as possibly indicative of the presence of sexual dimorphism, and assign H. dasos to the stem group rather than the crown group of Pycnogonida.[29]
Revision of the Callovian sea spider taxa from the La Voulte-sur-Rhône (France) is published by Sabroux et al. (2023), who assign the studied fossil to Pantopoda, crown-group Pycnogonida, assign Palaeopycnogonides gracilis to the new family Palaeopycnogonididae, and interpret Colossopantopodus boissinensis and Palaeoendeis elmii as members of the families Colossendeidae and Endeidae, respectively.[30]

Crustaceans

Malacostracans

Name	Novelty	Status	Authors	Age	Type locality	Country	Notes
Albaidaplax[31]	Gen. et sp. nov	Valid	Garassino, Pasini & Castro	Pliocene to early Pleistocene		Italy Spain	A goneplacid crab. The type species is Albaidaplax ispalensis. Announced in 2013;[32] validated in 2023.
Annieporcellana paleocenica[33]	Sp. nov	Valid	Yost, Feldmann & Schweitzer	Paleocene	Kambühel Formation	Austria	A member of Galatheoidea belonging to the family Catillogalatheidae.
Bahiacaris[34]	Gen. et comb. nov	Valid	Schweitzer et al.	Early Cretaceous (Aptian)		Brazil	A caridean shrimp; a new genus for "Atyoida" roxoi Beurlen (1950). Announced in 2019;[35] validated in 2023.
Bechleja brevirostris[36]	Sp. nov	Valid	De Mazancourt, Wappler & Wedmann	Eocene	Messel pit	Germany	Possibly a member of the family Palaemonidae. Announced in 2022; the correction including evidence of registration in ZooBank was published in 2023.[37]
Bericorystes[38]	Gen. et sp. nov	Valid	De Angeli	Eocene		Italy	A crab belonging to the family Corystidae. The type species is B. caporiondoi.
Braggicarpilius wanzenboecki[39]	Sp. nov	Valid	Miller, Schweitzer & Feldmann	Paleocene	Kambühel Formation	Austria	A crab belonging to the family Carpiliidae.
Callianassa ocozocoautlaensis[40]	Sp. nov	Valid	Hyžný, Vega & Coutiño	Late Cretaceous (Maastrichtian)	Ocozocoautla Formation	Mexico	A member of Callianassidae, a species of Callianassa (sensu lato). Announced in 2013;[41] validated in 2023.
Campanaxius[42]	Gen. et sp. nov	Valid	Nyborg, Hyžný & Haggart	Late Cretaceous (Campanian)	Cedar District Formation	United States ( Washington)	A member of Axiidea. The type species is C. raffi.
Cherusius marangoni[38]	Sp. nov	Valid	De Angeli	Eocene		Italy	A crab belonging to the family Domeciidae.
Chronocancer[43]	Gen. et sp. nov	Valid	Santana et al.	Early Cretaceous (Aptian-Albian)	Romualdo Formation	Brazil	A crab, probably a member of the family Orithopsidae. The type species is C. camilosantanai. Announced in 2022 in an online-only journal, and the publication did not include a ZooBank registration number;[44] validated in 2023.
Corystites orgianensis[38]	Sp. nov	Valid	De Angeli	Eocene		Italy	A crab belonging to the family Corystidae.
Costacopluma squiresi[45]	Sp. nov	Valid	Nyborg, Vega & Filkorn	Paleocene	Santa Susana Formation	United States ( California)	A retroplumid crab. Announced in 2009;[46] validated in 2023.
Cretacocalcinus fortis[47]	Sp. nov		Ferratges & Zamora in García-Penas et al.	Early Cretaceous	Maestrazgo Basin	Spain	A hermit crab.
Cretalamoha[48]	Gen. et sp. nov	Valid	Nyborg, Garassino & Vega	Late Cretaceous (Campanian)	Pender Formation	Canada ( British Columbia)	A member of Homolidae. The type species is C. boweni. Announced in 2017;[49] validated in 2023.
Cugocaris[50]	Gen. et sp. nov	Valid	Liu et al.	Silurian	Fentou Formation	China	A member of Phyllocarida belonging to the group Archaeostraca. Genus includes new species C. future.
Dardanus cyprioticus[51]	Sp. nov	Valid	Wallaard et al.	Miocene (Serravallian-Messinian)	Pakhna Formation	Cyprus	A species of Dardanus.
Dardanus plevrotos[51]	Sp. nov	Valid	Wallaard et al.	Miocene (Serravallian-Messinian)	Pakhna Formation	Cyprus	A species of Dardanus.
Diaulax rosablanca[52]	Sp. nov	Valid	Gómez-Cruz, Bermúdez & Vega	Early Cretaceous (Valanginian)	Rosablanca Formation	Colombia	A dromioid crab. Announced in 2015;[53] validated in 2023.
Dinocarcinus[54]	Gen. et sp. nov	Valid	Van Bakel et al.	Late Cretaceous (late Campanian)		France	A crab, a member of Portunoidea sensu lato. The type species is D. velauciensis. Announced in 2019;[55] validated in 2023.
Dromiopsis aedicula[39]	Sp. nov	Valid	Miller, Schweitzer & Feldmann	Paleocene	Kambühel Formation	Austria	A crab belonging to the family Dromiidae.
Dromiopsis bullamelga[39]	Sp. nov	Valid	Miller, Schweitzer & Feldmann	Paleocene	Kambühel Formation	Austria	A crab belonging to the family Dromiidae.
Dubiostenopus[56]	Gen. et sp. nov	Valid	Alencar et al.	Early Cretaceous (Aptian-Albian)	Romualdo Formation	Brazil	A member of Stenopodidea of uncertain affinities. The type species is D. parvus.
Enoploclytia tepeyacensis[57]	Sp. nov	Valid	Vega, Garassino & Zapata-Jaime	Late Cretaceous (Campanian)		Mexico	An erymid, a species of Enoploclytia. Announced in 2013;[58] validated in 2023.
Eobooralana[59]	Gen. et comb. nov		Schädel, Nagler & Hyžný	Middle Jurassic (Callovian)		France	An isopod belonging to the group Scutocoxifera. The type species is "Urda" rhodanica Van Straelen (1928).
Eomunidopsis kinokunica[60]	Sp. nov	Valid	Karasawa, Ohara & Kato	Early Cretaceous (Barremian)	Arida Formation	Japan	A member of the family Galatheidae. Announced in 2008 in an online-only journal, prior to electronic-only publications being allowed under ICZN; validated in 2023.[60]
Eoparanaxia[61]	Gen. et sp. nov	Valid	Ferratges et al.	Eocene	Pamplona Marls Formation	Spain	A crab belonging to the family Epialtidae and the subfamily Pisinae. The type species is E. eocenica.
Eryma nippon[60]	Sp. nov	Valid	Karasawa, Ohara & Kato	Early Cretaceous (Barremian)	Arida Formation	Japan	Announced in 2008 in an online-only journal, prior to electronic-only publications being allowed under ICZN; validated in 2023.[60]
Gladiocaris[62]	Gen. et comb. nov	Valid	Garassino et al.	Middle Triassic	Trochitenkalk Formation	Germany	A member of the family Penaeidae. Genus includes "Antrimpos" germanicus Brandt & Schulz (2013)
Glyphea pisuergae[63]	Sp. nov		Charbonnier, Garassino & López-Horgue	Early Jurassic (Pliensbachian–Toarcian)		Spain
Gonatocaris wuhanensis[50]	Sp. nov	Valid	Liu et al.	Silurian	Fentou Formation	China	A member of Phyllocarida belonging to the group Archaeostraca.
Hepatus beurleni[64]	Nom. nov	Valid	Lima et al.	Miocene	Pirabas Formation	Brazil	A species of Hepatus; a replacement name for Cyclocancer tuberculatus Beurlen (1958).
Hoploparia natsumiae[60]	Sp. nov	Valid	Karasawa, Ohara & Kato	Early Cretaceous (Barremian)	Arida Formation	Japan	Announced in 2008 in an online-only journal, prior to electronic-only publications being allowed under ICZN; validated in 2023.[60]
Jaliscosphaera[65]	Gen. et sp. nov		García-Vázquez, Alvarado-Ortega & Vega	Pliocene		Mexico	An isopod belonging to the family Sphaeromatidae. The type species is J. pliocenica.
Laeviprosopon ewakrzeminskae[66]	Sp. nov	Valid	Starzyk et al.	Late Jurassic (Tithonian)	Ernstbrunn Formation	Austria	A crab belonging to the family Homolidae.
Laeviprosopon joecollinsi[66]	Sp. nov	Valid	Starzyk et al.	Late Jurassic (Oxfordian)		Poland	A crab belonging to the family Homolidae.
Laeviprosopon lanceatum[66]	Sp. nov	Valid	Starzyk et al.	Late Jurassic (Oxfordian)		Poland	A crab belonging to the family Homolidae.
Litorepagurus[67]	Gen. et sp. nov	Valid	Fraaije et al.	Early Cretaceous (Albian)		France	A hermit crab. Genus includes new species L. wissantensis.
Meroncarcinus[68]	Gen. et sp. nov	In press	Van Bakel & Guinot	Middle Jurassic (Callovian)		France	A crab belonging to the family Glaessneropsidae. The type species is M. boursicoti.
Mesolambrus vallionensis[38]	Sp. nov	Valid	De Angeli	Eocene		Italy	A crab belonging to the family Parthenopidae.
Metanephrops serendipitus[69]	Sp. nov	Valid	Gašparič et al.	Miocene		Slovenia	A species of Metanephrops. Announced in 2021;[70] validated in 2023.
Meyeria hurtrelleorum[71]	Sp. nov	Valid	Charbonnier et al.	Late Jurassic (Oxfordian)		France	A member of the family Mecochiridae.
Miohepatus amazonicus[64]	Comb. nov	Valid	Lima et al.	Miocene	Pirabas Formation	Brazil	A crab belonging to the family Aethridae. Moved from Hepatella amazonica Beurlen (1958). The type species of the new genus Miohepatus, which also includes extant species Miohepatus peruvianus (originally Hepatella peruviana Rathbun, 1933)
Necrocarcinus gorbenkoi[72]	Sp. nov	Valid	Mychko et al.	Late Cretaceous (Cenomanian)	Lyamino Formation	Russia ( Moscow Oblast)	A crab belonging to the group Raninoida.
Ophthalmoplax andina[73]	Sp. nov	Valid	Guzmán et al.	Late Cretaceous (Campanian)	Lodolitas de Aguacaliente Formation	Colombia	A member of Macropipidae, a species of Ophthalmoplax. Announced in 2016;[74] validated in 2023.
Oregonina[75]	Gen. et comb. nov	Valid	Nyborg, Garassino & Nyborg	Eocene Middle Eocene	Yamhill Formation	United States ( Oregon)	A lyreidid crab. The type species is "Macroacaena" leucosiae (Rathbun, 1932)
Ostenosculda[76]	Gen. et sp. nov	Valid	Braig et al.	Early Jurassic (Sinemurian)		Italy	A mantis shrimp belonging to the group Unipeltata. The type species is O. teruzzii.
Paguristes timoni[77]	Sp. nov	Valid	Wallaard et al.	Miocene (Tortonian)	St. Marys Formation	United States ( Maryland)	A hermit crab, a species of Paguristes.
Pagurus hazenorum[77]	Sp. nov	Valid	Wallaard et al.	Miocene (Tortonian)	St. Marys Formation	United States ( Maryland)	A hermit crab, a species of Pagurus.
Palaega yamadai[60]	Sp. nov	Valid	Karasawa, Ohara & Kato	Early Cretaceous (Barremian)	Arida Formation	Japan	An isopod belonging to the family Cirolanidae. Announced in 2008 in an online-only journal, prior to electronic-only publications being allowed under ICZN; validated in 2023.[60]
Palaeodromites pimientai[47]	Sp. nov		Ferratges & Zamora in García-Penas et al.	Early Cretaceous	Maestrazgo Basin	Spain	A crab.
Palaeosynaxes[78]	Gen. et sp. nov	Valid	Fraaije et al.	Late Jurassic (Oxfordian)		Poland	A furry lobster. The type species is P. montserratae.
Paromola roseburgensis[79]	Sp. nov	Valid	Nyborg, Garassino & Vega	Early Eocene	Roseburg Formation	United States	A member of Homolidae. Announced in 2017;[49] validated in 2023.
Percnon paleogenicus[38]	Sp. nov	Valid	De Angeli	Eocene		Italy	A species of Percnon.
Petersbuchia[80]	Gen. et sp. nov	Valid	Schweigert	Late Jurassic (Kimmeridgian)	Treuchtlingen Formation	Germany	A crab belonging to the group Homolodromioidea and the family Prosopidae. The type species is P. thauckei. Announced in 2021 in an online-only journal;[81] validated in 2023.[80]
Petrolisthes mitseroensis[51]	Sp. nov	Valid	Wallaard et al.	Miocene (Serravallian-Messinian)	Pakhna Formation	Cyprus	A species of Petrolisthes.
Phrynolambrus sagittalis[82]	Sp. nov	Valid	Ferratges et al.	Eocene	Pamplona Formation	Spain	A crab belonging to the family Parthenopidae and the subfamily Dairoidinae.
Planobranchia elongata[61]	Sp. nov	Valid	Ferratges et al.	Eocene	Pamplona Marls Formation	Spain	A crab belonging to the family Epialtidae and the subfamily Pisinae.
Protomunida kambuehelensis[33]	Sp. nov	Valid	Yost, Feldmann & Schweitzer	Paleocene	Kambühel Formation	Austria	A member of the family Munididae.
Pseudoglyphea anisica[83]	Sp. nov	Valid	Pasini, Garassino & Charbonnier	Middle Triassic (Anisian)		Italy	A litogastrid lobster.
Somalis[84]	Gen. et sp. nov	Valid	Barros & de Oliveira	Early Cretaceous (Aptian-Albian)	Romualdo Formation	Brazil	A member of Penaeoidea. The type species is S. piauiensis.
Soomicaris ordosensis[85]	Sp. nov		Liu et al.	Ordovician	Lashizhong Formation	China	A member of Phyllocarida belonging to the group Archaeostraca and the family Caryocarididae.
Spinirostrimaia echinata[61]	Sp. nov	Valid	Ferratges et al.	Eocene	Pamplona Marls Formation	Spain	A crab belonging to the family Majidae.
Squamipelta[33]	Gen. et sp. nov	Valid	Yost, Feldmann & Schweitzer	Paleocene	Kambühel Formation	Austria	A hermit crab belonging to the family Annuntidiogenidae. The type species is S. insecta.
Tanaidaurum[86]	Gen. et sp. nov	Valid	Pazinato, Müller & Haug	Cretaceous	Burmese amber	Myanmar	A member of Tanaidacea. The type species is T. kachinensis.
Tanidromites maerteni[87]	Sp. nov	Valid	Fraaije et al.	Middle Jurassic (Bajocian)		France	A tanidromitid crab. Announced in 2013;[88] validated in 2023.
Triassosculda[89]	Gen. et sp. nov	Valid	Smith, Charbonnier, Fara & Brayard in Smith et al.	Early Triassic	Thaynes Group	United States ( Idaho)	A mantis shrimp belonging to the group Unipeltata. The type species is T. ahyongi.
Trichopeltarion ryouheii[90]	Sp. nov	Valid	Kato in Kato et al.	Miocene	Kosho Formation	Japan	A member of the family Trichopeltariidae.
Urda buechneri[59]	Sp. nov		Schädel, Nagler & Hyžný	Middle Jurassic (Bajocian)		Germany	An isopod belonging to the group Scutocoxifera.
Urda stemmerbergensis[59]	Comb. nov		(Malzahn)	Early Cretaceous (Hauterivian)		Germany	An isopod belonging to the group Scutocoxifera. Moved from "Palaega" stemmerbergensis Malzahn (1968).
Urda suevica[59]	Comb. nov		(Reiff)	Early Jurassic (Pliensbachian)	Amaltheenton Formation	Germany	An isopod belonging to the group Scutocoxifera. Moved from "Palaega" suevica Reiff (1936).
Verrucarcinus marsae[68]	Sp. nov	In press	Van Bakel & Guinot	Middle Jurassic (Callovian)		France	A crab belonging to the family Glaessneropsidae.
Viapagurus[47]	Gen. et comb. nov		Ferratges & Zamora in García-Penas et al.	Early Cretaceous	Maestrazgo Basin	Spain	A hermit crab. The type species is "Pagurus" avellanedai Vía (1951).
Vilsercarcinus[68]	Gen. et sp. nov	In press	Van Bakel & Guinot	Jurassic (Toarcian-Callovian)		Austria-Germany border area	A crab belonging to the family Glaessneropsidae. The type species is V. keuppi.
Xanthosia sakoi[60]	Sp. nov	Valid	Karasawa, Ohara & Kato	Early Cretaceous (Barremian)	Arida Formation	Japan	A member of the family Etyidae. Announced in 2008 in an online-only journal, prior to electronic-only publications being allowed under ICZN; validated in 2023.[60]

Malacostracan research

Chény, Charbonnier & Audo (2023) reexamine the fossil record of lobsters from the Middle Jurassic of Normandy (France), providing evidence of the presence of sexual dimorphism in Glyphea dressieri and proposing the first reconstruction of this lobster.[91]
Putative hypothalassiid Lathahypossia aculeata is reinterpreted as a xanthid by Ossó & Ng (2023).[92]
A specimen of Araripenaeus timidus with a swelling on its carapace which might be indicative of infestation by bopyrid isopods is described from the Lower Cretaceous Romualdo Formation (Brazil) by Lima et al. (2023), representing the oldest evidence of parasitism in marine dendrobranchiate shrimps reported to date.[93]
A study on the extinction and survival of the decapod crustacean groups during the Cretaceous–Paleogene extinction event is published by Schweitzer & Feldmann (2023).[94]

Ostracods

Name	Novelty	Status	Authors	Age	Type locality	Country	Notes
Acratia xinjiangensis[95]	Sp. nov		Luo et al.	Carboniferous (Pennsylvanian)		China
Aechmina iwatensis[96]	Sp. nov	Valid	Tanaka	Carboniferous (Pennsylvanian)	Nagaiwa Formation	Japan
Bairdia dukanensis[97]	Sp. nov	Valid	Hawramy, Al-Obidee & Aziz	Late Cretaceous	Shiranish Formation	Iraq	A member of the family Bairdiidae.
Bairdoppilata shiranishensis[97]	Sp. nov	Valid	Hawramy, Al-Obidee & Aziz	Late Cretaceous	Shiranish Formation	Iraq	A member of the family Bairdiidae.
Bungonibeyrichia treslata[98]	Sp. nov	In press	Camilleri, Weldon & Warne	Devonian (Emsian)	Woori Yallock Formation	Australia	A member of Palaeocopida belonging to the group Beyrichicopina and the family Craspedobolbinidae.
Buntonia whittakerensis[99]	Sp. nov	Valid	Khosla et al.	Late Cretaceous-Paleocene transition	Deccan Intertrappean Beds	India
Calocaria callundosa[100]	Sp. nov		Perrier et al.	Silurian (Přídolí)		Spain	A myodocope ostracod.
Cutympanum[101]	Gen. et sp. nov	In press	Williams et al.	Silurian	Si Ka Formation	Vietnam	A glossomorphitine hollinoidean ostracod. Genus includes new species C. hagiangensis.
Cyprideis calchaquiensis[102]	Sp. nov	Valid	Zamudio & Carignano	Miocene		Argentina	A member of the family Cytherideidae.
Cyprideis qattaraensis[103]	Sp. nov		Shahin, El Khawagah & Shahin			Egypt
Cytheropteron tesakovae[104]	Sp. nov		Karpuk	Early Cretaceous (Barremian–Aptian)		Crimea	A member of Podocopida belonging to the family Paradoxostomatidae. The specific name is shared with Cytheropteron tesakovae Kempf (2011).
Damonella medialtis[105]	Sp. nov	Valid	Santos Filho et al.	Early Cretaceous		Brazil
Healdia ofunatensis[96]	Sp. nov	Valid	Tanaka	Carboniferous (Pennsylvanian)	Nagaiwa Formation	Japan
Healdia rikutyuensis[96]	Sp. nov	Valid	Tanaka	Carboniferous (Pennsylvanian)	Nagaiwa Formation	Japan
Healdianella shiqianensis[95]	Sp. nov		Luo et al.	Carboniferous (Pennsylvanian)		China
Hornibrookella nudosa[97]	Sp. nov	Valid	Hawramy, Al-Obidee & Aziz	Late Cretaceous	Shiranish Formation	Iraq	A member of the family Hemicytheridae.
Ideluralia[106]	Nom. nov	Valid	Antonietto & Brandão	Devonian		Russia	A member of the family Bairdiidae; a replacement name for Bairdiella Egorova (1960).
Jordanites michinokuensis[96]	Sp. nov	Valid	Tanaka	Carboniferous (Pennsylvanian)	Nagaiwa Formation	Japan
Limnocythere martensi[99]	Sp. nov	Valid	Khosla et al.	Late Cretaceous-Paleocene transition	Deccan Intertrappean Beds	India	A species of Limnocythere.
Liuzhinia phetchabunensis[107]	Sp. nov		Forel & Chitnarin	Permian		Thailand
Looneyellopsis? sagittensis[105]	Sp. nov	Valid	Santos Filho et al.	Early Cretaceous		Brazil
Microceratina andreui[108]	Sp. nov	Valid	Cabral & Lord in Danielopol et al.	Early and Middle Jurassic (Toarcian and Aalenian)	São Gião Formation	Portugal	A member of the family Cytheruridae.
Monspopulus[101]	Gen. et sp. nov	In press	Williams et al.	Silurian	Si Ka Formation	Vietnam	A sigmoopsine hollinoidean ostracod. Genus includes new species M. amicus.
Neomonoceratina farasensis[103]	Sp. nov		Shahin, El Khawagah & Shahin			Egypt
Pattersoncypris trapezium[105]	Sp. nov	Valid	Santos Filho et al.	Early Cretaceous		Brazil
Platyrhomboides japonica[96]	Sp. nov	Valid	Tanaka	Carboniferous (Pennsylvanian)	Nagaiwa Formation	Japan
Platyrhomboides tohokuensis[96]	Sp. nov	Valid	Tanaka	Carboniferous (Pennsylvanian)	Nagaiwa Formation	Japan
Pseudobythocypris asiatica[96]	Sp. nov	Valid	Tanaka	Carboniferous (Pennsylvanian)	Nagaiwa Formation	Japan
Pseudobythocypris siveteri[96]	Sp. nov	Valid	Tanaka	Carboniferous (Pennsylvanian)	Nagaiwa Formation	Japan
Pseudobythocypris zipangu[96]	Sp. nov	Valid	Tanaka	Carboniferous (Pennsylvanian)	Nagaiwa Formation	Japan
Thuringobolbina ikeyai[96]	Sp. nov	Valid	Tanaka	Carboniferous (Pennsylvanian)	Nagaiwa Formation	Japan
Zonocypris penchi[99]	Sp. nov	Valid	Khosla et al.	Late Cretaceous-Paleocene transition	Deccan Intertrappean Beds	India

Thecostracans

Name	Novelty	Status	Authors	Age	Type locality	Country	Notes	Images
Eolepas carniensis[109]	Sp. nov	Valid	Gale et al.	Late Triassic (Carnian)	Grabfeld Formation	Germany	A barnacle belonging to the family Eolepadidae.
Protochelonibia hermani[110]	Sp. nov	Valid	Gale in De Schutter et al.	Oligocene (Rupelian)	Boom Formation	Belgium	A barnacle belonging to the family Chelonibiidae.

Other crustaceans

Name	Novelty	Status	Authors	Age	Type locality	Country	Notes	Images
Carapacestheria cangshanensis[111]	Sp. nov	In press	Li	Late Jurassic	Penglaizhen Formation	China	A clam shrimp.
Malayacyclus[112]	Gen. et sp. nov	Valid	Tang et al.	Carboniferous (Viséan)		Malaysia	A member of Cyclida. Genus includes new species M. terengganuensis. Announced in 2021;[113] validated in 2023.

Insects

Megacheirians

Name	Novelty	Status	Authors	Age	Type locality	Country	Notes	Images

Radiodonts

Name	Novelty	Status	Authors	Age	Type locality	Country	Notes
Anomalocaris daleyae[114]	Sp. nov	Valid	Paterson, García-Bellido & Edgecombe	Cambrian Stage 4	Emu Bay Shale	Australia
Echidnacaris[114]	Gen. et comb. nov	Valid	Paterson, García-Bellido & Edgecombe	Cambrian Stage 4	Emu Bay Shale	Australia	A member of the family Tamisiocarididae. The type species is "Anomalocaris" briggsi Nedin (1995).
Guanshancaris[115]	Gen. et comb. nov		Zhang et al.	Cambrian Stage 4	Wulongqing Formation	China	An amplectobeluid radiodont. The type species is "Anomalocaris" kunmingensis Wang, Huang & Hu (2013).
Pseudoangustidontus izdigua[116]	Sp. nov	Valid	Potin, Gueriau & Daley	Ordovician (Tremadocian)	Fezouata Formation	Morocco	A suspension feeding hurdiid radiodont within new subfamily Aegirocassisinae.

Radiodont research

A study on molting patterns and ontogeny in Stanleycaris is published by Moysiuk & Caron (2023), who find evidence for two distinct fossil types of Stanleycaris (carcasses and molted exoskeletal remains), interpret their findings as confirming that radiodonts grew by periodic ecdysis, and consider the general pattern of molting in Stanleycaris to be likely shared with other radiodonts and possibly with other early arthropods.[117]
A study on the functional capabilities and hydrodynamic performance of the frontal appendages of Anomalocaris canadensis is published by Bicknell et al. (2023), who interpret their findings as indicating that A. canadensis targeted soft-bodied prey.[118]

Trilobites

Name	Novelty	Status	Authors	Age	Type locality	Country	Notes
Anderssonella undulata[119]	Sp. nov	Valid	Wernette & Hughes in Wernette et al.	Cambrian (Furongian)	Ao Mo Lae Formation	Thailand	A member of Asaphida belonging to the family Dikelocephalidae.
Arisemolobes[120]	Gen. et sp. nov	Valid	Ingham & Fortey	Ordovician	Charchaq Group	China	A member of Asaphida belonging to the group Cyclopygoidea and the family Ellipsotaphridae. Genus includes new species A. zhouzhiyii.
Asaphellus charoenmiti[119]	Sp. nov	Valid	Wernette & Hughes in Wernette et al.	Ordovician (Tremadocian)	Talo Wao Formation	Thailand	A member of the family Asaphidae.
Asaphellus zheni[121]	Sp. nov	In press	Smith & Allen	Ordovician (Floian)	Nambeet Formation	Australia	A member of the family Asaphidae.
Bainella (Belenops) sulmatogrossensis[122]	Sp. nov		Kerber et al.	Devonian		Brazil
Buttsia trema[123]	Sp. nov	Valid	Westrop & Eoff	Cambrian (Jiangshanian)	Shallow Bay Formation	Canada ( Newfoundland and Labrador)
Catinouyia heyunensis[124]	Sp. nov	Valid	Sun et al.	Cambrian Stage 4	Burgasutay Formation	Mongolia
Caznaia imsamuti[119]	Sp. nov	Valid	Wernette & Hughes in Wernette et al.	Cambrian (Furongian)	Ao Mo Lae Formation	Thailand	A member of Asaphida belonging to the family Dikelocephalidae.
Circulocrania ? dichaulax[120]	Sp. nov	Valid	Ingham & Fortey	Ordovician	Myoch Formation	United Kingdom
Corbinia perforata[119]	Sp. nov	Valid	Wernette & Hughes in Wernette et al.	Ordovician (Tremadocian)	Talo Wao Formation	Thailand	A member of the family Eurekiidae.
Crassibole kore[125]	Sp. nov	Valid	Müller & Hahn	Carboniferous (Viséan)	Hillershausen Formation	Germany
Dianops kaufmannii[126]	Sp. nov	Valid	Basse & Lemke	Devonian (Famennian)	Wocklum Limestone	Germany
Funeralaspis[127]	Gen. et sp. nov	Valid	Adrain & Pérez-Peris	Ordovician (Dapingian)	Antelope Valley Limestone	United States ( California)	An odontopleurine trilobite. The type species is F. deathvalleyensis.
Jiia talowaois[119]	Sp. nov	Valid	Wernette & Hughes in Wernette et al.	Ordovician (Tremadocian)	Talo Wao Formation	Thailand	A member of Asaphida belonging to the family Remopleurididae.
Karslanus leishuae[128]	Sp. nov		Peng et al.	Cambrian (Guzhangian)	Longha Formation	China
Leishuia[129]	Gen. et sp. nov	In press	Peng et al.	Cambrian (Guzhangian)	Longha Formation	China	A dameselloid trilobite. Genus includes new species L. leishuae.
Lophosaukia nuchanongi[119]	Sp. nov	Valid	Wernette & Hughes in Wernette et al.	Cambrian (Furongian)	Ao Mo Lae Formation	Thailand	A member of Asaphida belonging to the family Dikelocephalidae.
Madiganaspis lauriei[121]	Sp. nov	In press	Smith & Allen	Ordovician (Floian)	Nambeet Formation	Australia	A member of the family Asaphidae.
Mitroplax[130]	Gen. et comb. nov	Valid	Holloway	Devonian (Pragian to Emsian)	Norton Gully Sandstone	Australia	A scutelluid trilobite. The type species is "Bronteus" enormis Etheridge (1894).
Monocheilus reginae[131]	Sp. nov	Valid	Blackwell & Westrop	Cambrian (Jiangshanian)	Honey Creek Formation	United States ( Oklahoma)	A member of the family Eurekiidae.
Monocheilus richardi[131]	Sp. nov	Valid	Blackwell & Westrop	Cambrian (Jiangshanian)	Honey Creek Formation	United States ( Oklahoma)	A member of the family Eurekiidae.
Norasaphus (Norasaphus) jagoi[121]	Sp. nov	In press	Smith & Allen	Ordovician (Floian)	Nambeet Formation	Australia	A member of the family Asaphidae.
Olenoides proa[132]	Comb. nov		(Rusconi)	Cambrian (Guzhangian)		Argentina	Moved from Cancapolia proa Rusconi (1954).
Omegops honggulelengensis[133]	Sp. nov	Junior synonym	Zong	Devonian (Famennian)		China	A phacopid trilobite. Subsequently considered to be a junior synonym of Omegops mobilis (Xiang, 1981) by Zong (2023).[134]
Omegops xiangi[133]	Sp. nov	Junior synonym	Zong	Devonian (Famennian)		China	A phacopid trilobite. Subsequently considered to be a junior synonym of Clarksonops junggariensis Crônier in Crônier and Waters (2022) by Zong (2023), resulting in a new combination Omegops junggariensis.[134]
Oryctocephalus doliiformis[135]	Sp. nov	Valid	Korovnikov	Cambrian	Kuonamka Formation	Russia ( Sakha)
Oryctocephalus molodoensis[135]	Sp. nov	Valid	Korovnikov	Cambrian	Kuonam formation	Russia ( Sakha)
Pagodia? uhleini[119]	Sp. nov	Valid	Wernette & Hughes in Wernette et al.	Cambrian (Furongian)	Ao Mo Lae Formation	Thailand	A member of Corynexochida belonging to the group Leiostegiina and the family Leiostegiidae.
Plesiowensus erraticus[136]	Sp. nov	Valid	Basse & Schöning	Silurian		Germany	A member of the family Proetidae.
Pseudokoldinioidia maneekuti[119]	Sp. nov	Valid	Wernette & Hughes in Wernette et al.	Cambrian (Furongian)	Ao Mo Lae Formation	Thailand	A member of Corynexochida belonging to the group Leiostegiina and the family Missisquoiidae.
Ptychaspis matuszaki[131]	Sp. nov	Valid	Blackwell & Westrop	Cambrian (Jiangshanian)	Fort Sill Formation	United States ( Oklahoma)	A member of the family Ptychaspididae.
Ptychaspis occulta[131]	Sp. nov	Valid	Blackwell & Westrop	Cambrian	Wilberns Formation	United States ( Texas)	A member of the family Ptychaspididae.
Pulcherproetus brandenborchnova[136]	Sp. nov	Valid	Basse & Schöning	Silurian		Germany	A member of the family Proetidae.
Pulcherproetus inexspectatus[136]	Sp. nov	Valid	Basse & Schöning	Silurian		Germany	A member of the family Proetidae.
Pulcherproetus laerheidensis[136]	Sp. nov	Valid	Basse & Schöning	Silurian		Germany	A member of the family Proetidae.
Pulcherproetus maennilae[136]	Sp. nov	Valid	Basse & Schöning	Silurian		Estonia	A member of the family Proetidae.
Pulcherproetus schranki[136]	Sp. nov	Valid	Basse & Schöning	Silurian		Germany	A member of the family Proetidae.
Pulcherproetus sutherbergensis[136]	Sp. nov	Valid	Basse & Schöning	Silurian		Germany	A member of the family Proetidae.
Pulcherproetus trachyglossus[136]	Sp. nov	Valid	Basse & Schöning	Silurian		Germany	A member of the family Proetidae.
Rabienops borkewehrensis[126]	Sp. nov		Basse & Lemke	Devonian (Famennian)	Wocklum Limestone	Germany	A member of the family Phacopidae. Basse & Lemke (2023) did not exclude the possibility of the synonymy with R. evae.[126]
Rabienops dxv[126]	Sp. nov		Basse & Lemke	Devonian (Famennian)	Wocklum Limestone	Germany	A member of the family Phacopidae. Basse & Lemke (2023) did not exclude the possibility of the synonymy with R. evae.[126]
Rodingaia leggi[121]	Sp. nov	In press	Smith & Allen	Ordovician (Floian)	Nambeet Formation	Australia	A member of the family Asaphidae.
Sanbernardaspis excalibur[121]	Sp. nov	In press	Smith & Allen	Ordovician (Tremadocian)	Nambeet Formation	Australia	A member of the family Asaphidae.
Signatoproetus[136]	Gen. et sp. nov	Valid	Basse & Schöning	Silurian		Germany	A member of the family Proetidae. Genus includes new species S. wiedae.
Spinicryphops wocklumeriae[126]	Comb. nov	Valid	(Richter & Richter)	Devonian (Famennian)	Wocklum Limestone	Germany	A member of the family Phacopidae. Moved from Phacops (Cryphops?) wocklumeriae Richter & Richter (1926).
Synaptotaphrus[120]	Gen. et sp. nov	Valid	Ingham & Fortey	Ordovician	Myoch Formation	United Kingdom	A member of Asaphida belonging to the group Cyclopygoidea and the family Ellipsotaphridae. Genus includes new species S. oarion.
Tarutaoia[119]	Gen. et sp. nov	Valid	Wernette & Hughes in Wernette et al.	Ordovician (Tremadocian)	Talo Wao Formation	Thailand	A member of Asaphida belonging to the family Remopleurididae. The type species is T. techawani.
Triorygma[123]	Gen. et sp. nov	Valid	Westrop & Eoff	Cambrian (Jiangshanian)	Shallow Bay Formation	Canada ( Newfoundland and Labrador)	Genus includes new species T. burkhalteri.
Tsinania sirindhornae[119]	Sp. nov	Valid	Wernette & Hughes in Wernette et al.	Cambrian (Furongian)	Ao Mo Lae Formation	Thailand	A member of Corynexochida belonging to the group Illaenina and the family Tsinaniidae.
Vandergrachtia vandergrachtii carsteni[125]	Ssp. nov	Valid	Müller & Hahn	Carboniferous (Viséan)	Hillershausen Formation	Germany
Veeversaspis[121]	Gen. et sp. nov	In press	Smith & Allen	Ordovician (Tremadocian)	Nambeet Formation	Australia	A member of the family Bathyuridae. The type species is V. jelli.

Trilobite research

A study on the timing of the appearance of trilobite planktic larvae is published Laibl, Saleh & Pérez-Peris (2023), who interpret their findings as indicating that Cambrian ecosystems were dominated by trilobites with exclusively benthic early post-embryonic stages, and that a progressive increase in the number of trilobite taxa that incorporated planktic stages in their development happened between the Miaolingian and the Middle Ordovician.[137]
A study on the disparity of trilobite cephalic structures across Cambrian Series 2, providing evidence that the development of disparity of various cephalic structures was constrained in different ways, is published by Holmes (2023).[138]
A study on the morphology and evolutionary relationships of Duyunaspis duyunensis, D. jianheensis and Balangia balangensis from the Cambrian Balang and Tsinghsutung formations (China) is published by Chen et al. (2023), who report evidence of gradual evolution indicative that Balangia was more likely to be an ancestor of Duyunaspis rather than its descendant.[139]
Taxonomic revision of the species belonging to the genus Abadiella is published by Wang, Peng & Zhang (2023), who consider Parabadiella, Guangyuanaspis and Parabadiella (Danangouia) to be junior junior synonyms of Abadiella, and consider the species A. huoi and A. bourgini to have wide geographic distribution in Gondwana, making stratigraphical correlations between various Gondwana regions based on Cambrian trilobites possible.[140]
A study on the morphology, ontogeny and systematics of Walcottaspis vanhornei is published by Srivastava & Hughes (2023).[141]
Hou, Hughes & Hopkins (2023) report the presence of setae on the walking legs of the Cambrian Olenoides serratus and on the gill shaft of the Ordovician Triarthrus eatoni, and interpret these setae as likely used to groom the gills of the trilobites.[142]
Evidence of the presence of countercurrent gaseous exchange mechanism in the gills of Triarthrus eatoni is presented by Hou et al. (2023).[143]
A study on the taphonomy of the Ordovician trilobites from the Walcott–Rust quarry (New York, United States) is published by Losso, Thines & Ortega-Hernández (2023), who report evidence indicating that fine-grained sediment supported the preservation of delicate appendages and facilitated their fossilization.[144]
Laibl et al. (2023) describe early developmental stages of at least nine trilobite species from the Fezouata Formation (Morocco), providing new information on the development of early Ordovician trilobites.[145]
Schoenemann & Clarkson (2023) describe specimens of Aulacopleura koninckii and Cyclopyge sibilla preserved with structures interpreted as likely median eyes, and interpret this finding as indicating that early developmental stages of trilobites possessed median eyes (probably unlike adult specimens).[146]
A study on the impact of changes of body shape and construction of Aulacopleura koninckii during its growth on changes of the style of its enrolment is published by Esteve & Hughes (2023), who find that the change in enrolment style happening at the onset of mature growth made it possible for A. koninckii to assume defensive posture regardless of the variation in the number of mature trunk segments of specimens belonging to the studied species.[147]
A study on the hydrodynamics of Microparia speciosa, indicating that it had a high stability in the water column when it was enrolled, is published by Esteve & López-Pachón (2023).[148]
Kraft et al. (2023) describe a specimen of Bohemolichas incola from the Darriwilian Šárka Formation (Czech Republic) preserved with fossilized gut contents, providing evidence of adaptation of the studied trilobite to feeding on organic remains including shells, and probably of digestive enzymes similar to those in modern crustaceans or chelicerates.[149]
Gishlick & Fortey (2023) describe a specimen of Walliserops trifurcatus with a malformed cephalic trident showing four rather than three tines, and consider its anatomy to be consistent with the interpretation of the trident as a weapon used for intraspecific combat.[150]
Fossil evidence confirming the survival of encrinurid trilobites into the earliest Devonian is reported from the Wutubulake and Mangeer formations (China) by Ma et al. (2023).[151]
A study on the impact of the Late Devonian extinctions on the taxonomic and morphological diversity of trilobites, and on the trilobite recovery after the extinction events, is published by Bault (2023).[152]
A study on the locomotion of trilobites, based on data from three-dimensional models, is published by Esteve & Rubio (2023), who find evidence for two main gait types reflecting burrowing and walking, as well as evidence indicating that the body structure constrained speed and lifestyles of trilobites.[153]
A study on changes of the morphological diversity of phacopid trilobites throughout their evolutionary history is published by Bault et al. (2023).[154]

Other arthropods

Name	Novelty	Status	Authors	Age	Type locality	Country	Notes
Austriocaris secretanae[155]	Sp. nov	Valid	Laville, Forel & Charbonnier	Middle Jurassic (Callovian)	La Voulte-sur-Rhône Lagerstätte	France	A thylacocephalan.
Carimersa[156]	Gen. et sp. nov		Briggs et al.	Silurian (Wenlock)	Herefordshire Lagerstätte	United Kingdom	A member of Artiopoda belonging to the group Vicissicaudata. The type species is C. neptuni.
Cotalagnostus greilingi[157]	Sp. nov	Valid	Weidner, Nielsen & Ebbestad	Cambrian (Miaolingian)	Alum Shale Formation	Sweden	A member of Agnostoidea belonging to the family Spinagnostidae.
Electroprojapyx[158]	Gen. et sp. nov	Valid	Sánchez-García et al.	Late Cretaceous (Cenomanian)	Burmese amber	Myanmar	A member of Diplura belonging to the family Projapygidae. The type species is E. alchemicus.
Lauravolsella[159]	Gen. et sp. nov	Valid	Haug, Fraaije & Haug	Carboniferous (Westphalian)		Netherlands	A millipede, possibly belonging to the group Archipolypoda. The type species is L. willemeni.
Lepidocampa glaesi[160]	Sp. nov	Valid	Sánchez-García, Sendra & Grimaldi in Sánchez-García et al.	Miocene	Dominican amber	Dominican Republic	A member of Diplura belonging to the family Campodeidae.
Lithopendra[161]	Gen. et sp. nov	Valid	Haug, Haug & Haug	Cretaceous	Burmese amber	Myanmar	A centipede belonging to the group Pleurostigmophora. The type species is L. anjafliessae.
Litocampa eobaltica[160]	Sp. nov	Valid	Sánchez-García, Sendra & Grimaldi in Sánchez-García et al.	Eocene	Baltic amber	Europe (Baltic Sea region)	A member of Diplura belonging to the family Campodeidae, a species of Litocampa.
Maldybulakia saierensis[162]	Sp. nov	Valid	Zong et al.	Silurian (Pridoli)		China
Paraclausocaris[155]	Gen. et sp. nov	Valid	Laville, Forel & Charbonnier	Middle Jurassic (Callovian)	La Voulte-sur-Rhône Lagerstätte	France	A thylacocephalan. The type species is P. harpa.
Rostricampa[160]	Gen. et sp. nov	Valid	Sánchez-García, Sendra & Grimaldi in Sánchez-García et al.	Miocene	Dominican amber	Dominican Republic	A member of Diplura belonging to the family Campodeidae. The type species is R. engeli.
Sidneyia malongensis[163]	Sp. nov	Valid	Zhu et al.	Cambrian Stage 3	Yu'anshan Formation	China
Sidneyia minor[164]	Sp. nov	Valid	Du et al.	Cambrian Stage 3		China
Symphylurinopsis[158]	Gen. et sp. nov	Valid	Sánchez-García et al.	Miocene	Dominican amber	Dominican Republic	A member of Diplura belonging to the family Projapygidae. The type species is S. punctatus.
Theatops groehni[165]	Sp. nov	Valid	Edgecombe et al.	Eocene	Baltic amber	Europe (Baltic Sea region)	A centipede belonging to the family Plutoniumidae.
Thulaspis[166]	Gen. et sp. nov	Valid	Berks et al.	Cambrian Stage 3	Buen Formation	Greenland	A member of Artiopoda. The type species is T. tholops.
Tonglaiia[163]	Gen. et sp. nov	Valid	Zhu et al.	Cambrian Stage 3	Yu'anshan Formation	China	A member of Artiopoda of uncertain affinities. The type species is T. bispinosa.
Zhugeia[163]	Gen. et sp. nov	Valid	Zhu et al.	Cambrian Stage 3	Yu'anshan Formation	China	A member of Artiopoda belonging to the group Xandarellida. The type species is Z. acuticaudata.

New information on the anatomy of Kylinxia zhangi, indicating that its head was composed of six segments (as in extant mandibulates), is presented by O'Flynn et al. (2023), who interpret their findings as indicating that a six-segmented head was already present in the last common ancestor of Kylinxia and the euarthropod crown group.[167]
Redescription of Isoxys curvirostratus, incorporating data from new fossil material from the Cambrian Chiungchussu Formation (China) and focusing on the biramous appendages of this arthropod, is published by Zhang et al. (2023), who report that the appendage differentiation in Isoxys was higher than previously considered, that the trunk of I. curvirostratus was not arthrodized, and that Isoxys was one of the earliest branching members of Deuteropoda.[168]
A study on the ontogeny of Isoxys minor, based on data from specimens from the Cambrian Shuijingtuo formation (China), is published by Ma et al. (2023), who interpret the studied fossil material as indicative of only slight morphological differences between the specimens of I. minor which might have been caused by different environment, indicative of the presence of brood care in I. minor, and well as indicative of reproductive ability at the early life stages of this arthropod.[169]
Drage, Legg & Daley (2023) describe exuviae from a marrellid marrellomorph from the Ordovician Fezouata Formation (Morocco), providing evidence of moulting behaviour distinct from that described for Marrella splendens.[170]
A study on the morphology of early developmental stages of marrellids from the Fezouata Formation is published by Laibl et al. (2023), who report that adults and immature individuals shares the same general appendage differentiation, and avoided direct competition for food resources only by feeding on particles of different size.[171]
New information on the anatomy of Concavicaris woodfordi, including the structure of the shield, the circulatory, digestive and reproductive systems, and the appendages, is presented by Laville et al. (2023).[172]
Wellman et al. (2023) present data supporting a Silurian (late Wenlock) age of the "Lower Old Red Sandstone" deposits of the Midland Valley (Scotland, United Kingdom) preserving the fossil material of Pneumodesmus newmani, supporting the interpretation of this myriapod as the oldest known air-breathing land animal.[173]
New information on the morphology of the Carboniferous millipedes Amynilyspes fatimae and Blanziulus parriati from the Montceau-les-Mines Lagerstätte (France) is presented by Lheritier et al. (2023).[174]

General research

New, diverse fossil material of radiodonts (including indeterminate hurdiids) and euarthropods (including Thelxiope cf. T. palaeothalassia, Perspicaris? dilatus, Branchiocaris pretiosa, Tuzoia retifera, T. guntheri, Dioxycaris argenta, bradoriids and a possible indeterminate species of Naraoia) is described from the Cambrian (Wuliuan) Spence Shale (Idaho and Utah, United States) by Kimmig et al. (2023).[175]
Naimark, Sizov & Khubanov (2023) report the discovery of a new assemblage of Cambrian arthropods from the Kimiltei site (Irkutsk Oblast, Russia), including the first records of members of Euthycarcinoidea and Synziphosurina from the Siberian platform and the first Cambrian record of Chasmataspidida from this platform.[176]
Braddy (2023) describes a resting trace of a phyllocarid crustacean from the Miaolingian Hickory Sandstone Member of the Riley Formation (Texas, United States), names a new ichnotaxon Minterichnus shieldi, and reinterprets the arthropod body fossil associated with the resting trace as a phyllocarid rather than the oldest known chasmataspidid.[177]

References

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García-Penas, Á.; Ferratges, F. A.; Moreno-Bedmar, J. A.; Bover-Arnal, T.; Gasca, J. M.; Aurell, M.; Zamora, S. (2023). "Decapod crustaceans from the Lower Cretaceous of Spain, with an account of new occurrences in Barremian-Aptian strata of the Maestrazgo Basin". Cretaceous Research. 150. 105576. Bibcode:2023CrRes.15005576G. doi:10.1016/j.cretres.2023.105576. S2CID 258754780.
Nyborg, T.; Garassino, A.; Vega, F. J. (2023). "Validation of Cretalamoha boweni Nyborg & Garassino (Brachyura: Homolidae) from the early Campanian, Upper Cretaceous of British Columbia, Canada". Zootaxa. 5318 (1): 148–150. doi:10.11646/zootaxa.5318.1.8. PMID 37518392. S2CID 260028035.
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Gómez-Cruz, A. de J.; Bermúdez, H. D.; Vega, F. J. (2015). "A new species of Diaulax Bell, 1863 (Brachyura: Dialucidae) in the Early Cretaceous of the Rosablanca Formation, Colombia". Boletín de la Sociedad Geológica Mexicana. 67 (1): 103–112. doi:10.18268/BSGM2015v67n1a8.
Van Bakel, B. W. M.; Hyžný, M.; Valentin, X.; N., Robin (2023). "Validation of Dinocarcinus velauciensis Van Bakel, Hyžný, Valentin & Robin, a fossil crab (Crustacea, Decapoda, Brachyura) from Upper Cretaceous (Campanian) continental deposits of Velaux and vicinity, southern France". Zootaxa. 5315 (5): 483–484. doi:10.11646/zootaxa.5315.5.5. PMID 37518414. S2CID 259879589.
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Alencar, D. R.; Santana, W.; Pinheiro, A. P.; Lima, D.; Feitosa Saraiva, A. Á.; de Oliveira, G. R. (2023). "New Cretaceous (Aptian/Albian) boxer shrimp (Crustacea, Decapoda, Stenopodidea) from the Araripe Sedimentary Basin, NE, Brazil". PLOS ONE. 18 (3). e0281334. Bibcode:2023PLoSO..1881334A. doi:10.1371/journal.pone.0281334. PMC 10032536. PMID 36947562.
Vega, F. J.; Garassino, A.; Zapata-Jaime, R. (2023). "Validation of Enoploclytia tepeyacensis Vega, Garassino, & Zapata-Jaime (Crustacea: Decapoda: Erymidae) from the Cretaceous (Campanian) of Mexico". Zootaxa. 5315 (5): 498–500. doi:10.11646/zootaxa.5315.5.9. PMID 37518410. S2CID 259898664.
Vega, F. J.; Garassino, A.; Zapata-Jaime, R. (2013). "Enoploclytia tepeyacensis n. sp. (Crustacea, Decapoda, Erymidae) from the Cretaceous (Campanian) of Coahuila, NE Mexico". Boletín de la Sociedad Geológica Mexicana. 65 (2): 207–211. doi:10.18268/BSGM2013v65n2a1.
Schädel, M.; Nagler, C.; Hyžný, M. (2023). "Fossil relatives of extant parasitic crustaceans from the Mesozoic of Europe" (PDF). Boletín de la Sociedad Geológica Mexicana. 75 (2). A220323. doi:10.18268/BSGM2023v75n2a220323. S2CID 259579171.
Karasawa, H.; Ohara, M.; Kato, H. (2023). "Validation of the names of four species of Decapoda and one species of Isopoda from the Lower Cretaceous (Barremian) Arida Formation of central Japan". Zootaxa. 5277 (1): 198–200. doi:10.11646/zootaxa.5277.1.12. PMID 37518321. S2CID 258447077.
Ferratges, F. A.; Domínguez, J. L.; Ossó, À.; Zamora, S. (2023). "Spider crabs (Decapoda: Brachyura: Majoidea) from the upper Eocene of south Pyrenees (Huesca, Spain)". Palaeontologia Electronica. 26 (2). 26.2.a27. doi:10.26879/1270.
Garassino, A.; Pasini, G.; Schweigert, G.; Charbonnier, S. (2023). "An updated reassessment of Antrimpos Münster, 1839 (Dendrobranchiata, Penaeidae)". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 307 (1): 1–15. doi:10.1127/njgpa/2023/1107. S2CID 256748593.
Charbonnier, S.; Garassino, A.; López-Horgue, M. A. (2023). "A new species of glypheid lobster, Glyphea pisuergae (Crustacea, Glypheoidea), from the Early Jurassic of Palencia, Basque-Cantabrian Basin, Spain". Annales de Paléontologie. 109 (1). 102596. Bibcode:2023AnPal.10902596C. doi:10.1016/j.annpal.2023.102596. S2CID 257862576.
Lima, D.; Silva, R. C.; Aguilera, O.; Pinheiro, A. P.; Santana, W. (2023). "Brazilian Miocene crabs I. Taxonomic review of Cyclocancer tuberculatus Beurlen, 1958 and Hepatella amazonica Beurlen, 1958 (Pancrustacea, Decapoda, Brachyura)". Papéis Avulsos de Zoologia. 63: e202363012. doi:10.11606/1807-0205/2023.63.012. S2CID 258096809.
García-Vázquez, L.; Alvarado-Ortega, J.; Vega, F. J. (2023). "Pliocene freshwater isopods (Crustacea: Peracarida: Isopoda) from Jalisco, Mexico" (PDF). Boletín de la Sociedad Geológica Mexicana. 75 (1). A271122. doi:10.18268/BSGM2023v75n1a271122. S2CID 258184899.
Starzyk, N.; Van Bakel, B. W. M.; Klompmaker, A. A.; Schweigert, G.; Fraaije, R. H. B. (2023). "A new approach to the systematics of Laeviprosopon (Brachyura: Homolidae), with remarks on molting process of the early brachyurans". Palaeontologia Electronica. 26 (1). 26.1.a10. doi:10.26879/1204.
Fraaije, R. H. B.; van Bakel, B. W. M.; Jagt, J. W. M.; Wallaard, J. J. W.; De Coninck, L. (2023). "A new hermit crab (Anomura, Paguroidea) from the middle Albian of Wissant, Pas-de-Calais (northern France)". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 307 (2): 107–111. doi:10.1127/njgpa/2023/1117. S2CID 257561920.
van Bakel, B. W. M.; Guinot, D. (2023). "New genera and species of glaessneropsid crabs from the Lower and Middle Jurassic of France and Germany-Austria, and reconsolidation of Charassocarcinus Van Straelen, 1925". Geobios. doi:10.1016/j.geobios.2023.05.007. S2CID 259916458.
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[PE263Wallaardetal-51] Wallaard, J. J. W.; Fraaije, R. H. B.; Van Bakel, B. W. M.; Jagt, J. W. M.; Müller, P. M. (2023). "Miocene decapod crustacean faunas from Cyprus – Part 1. Geographical-stratigraphical setting and Anomura". Palaeontologia Electronica. 26 (3). 26.3.a38. doi:10.26879/1258.

[52] Gómez-Cruz, A. de J.; Bermúdez, H. D.; Vega, F. J. (2023). "Validation of Diaulax rosablanca Gómez-Cruz, Bermúdez & Vega (Brachyura: Dialucidae) from the Lower Cretaceous Rosablanca Formation, Colombia". Zootaxa. 5315 (4): 396–398. doi:10.11646/zootaxa.5315.4.7. PMID 37518592. S2CID 259838457.

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[54] Van Bakel, B. W. M.; Hyžný, M.; Valentin, X.; N., Robin (2023). "Validation of Dinocarcinus velauciensis Van Bakel, Hyžný, Valentin & Robin, a fossil crab (Crustacea, Decapoda, Brachyura) from Upper Cretaceous (Campanian) continental deposits of Velaux and vicinity, southern France". Zootaxa. 5315 (5): 483–484. doi:10.11646/zootaxa.5315.5.5. PMID 37518414. S2CID 259879589.

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[57] Vega, F. J.; Garassino, A.; Zapata-Jaime, R. (2023). "Validation of Enoploclytia tepeyacensis Vega, Garassino, & Zapata-Jaime (Crustacea: Decapoda: Erymidae) from the Cretaceous (Campanian) of Mexico". Zootaxa. 5315 (5): 498–500. doi:10.11646/zootaxa.5315.5.9. PMID 37518410. S2CID 259898664.

[58] Vega, F. J.; Garassino, A.; Zapata-Jaime, R. (2013). "Enoploclytia tepeyacensis n. sp. (Crustacea, Decapoda, Erymidae) from the Cretaceous (Campanian) of Coahuila, NE Mexico". Boletín de la Sociedad Geológica Mexicana. 65 (2): 207–211. doi:10.18268/BSGM2013v65n2a1.

[Eobooralana-59] Schädel, M.; Nagler, C.; Hyžný, M. (2023). "Fossil relatives of extant parasitic crustaceans from the Mesozoic of Europe" (PDF). Boletín de la Sociedad Geológica Mexicana. 75 (2). A220323. doi:10.18268/BSGM2023v75n2a220323. S2CID 259579171.

[Zootaxa52771-60] Karasawa, H.; Ohara, M.; Kato, H. (2023). "Validation of the names of four species of Decapoda and one species of Isopoda from the Lower Cretaceous (Barremian) Arida Formation of central Japan". Zootaxa. 5277 (1): 198–200. doi:10.11646/zootaxa.5277.1.12. PMID 37518321. S2CID 258447077.

[Eoparanaxia-61] Ferratges, F. A.; Domínguez, J. L.; Ossó, À.; Zamora, S. (2023). "Spider crabs (Decapoda: Brachyura: Majoidea) from the upper Eocene of south Pyrenees (Huesca, Spain)". Palaeontologia Electronica. 26 (2). 26.2.a27. doi:10.26879/1270.

[62] Garassino, A.; Pasini, G.; Schweigert, G.; Charbonnier, S. (2023). "An updated reassessment of Antrimpos Münster, 1839 (Dendrobranchiata, Penaeidae)". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 307 (1): 1–15. doi:10.1127/njgpa/2023/1107. S2CID 256748593.

[63] Charbonnier, S.; Garassino, A.; López-Horgue, M. A. (2023). "A new species of glypheid lobster, Glyphea pisuergae (Crustacea, Glypheoidea), from the Early Jurassic of Palencia, Basque-Cantabrian Basin, Spain". Annales de Paléontologie. 109 (1). 102596. Bibcode:2023AnPal.10902596C. doi:10.1016/j.annpal.2023.102596. S2CID 257862576.

[Miohepatus-64] Lima, D.; Silva, R. C.; Aguilera, O.; Pinheiro, A. P.; Santana, W. (2023). "Brazilian Miocene crabs I. Taxonomic review of Cyclocancer tuberculatus Beurlen, 1958 and Hepatella amazonica Beurlen, 1958 (Pancrustacea, Decapoda, Brachyura)". Papéis Avulsos de Zoologia. 63: e202363012. doi:10.11606/1807-0205/2023.63.012. S2CID 258096809.

[65] García-Vázquez, L.; Alvarado-Ortega, J.; Vega, F. J. (2023). "Pliocene freshwater isopods (Crustacea: Peracarida: Isopoda) from Jalisco, Mexico" (PDF). Boletín de la Sociedad Geológica Mexicana. 75 (1). A271122. doi:10.18268/BSGM2023v75n1a271122. S2CID 258184899.

[PELaeviprosopon-66] Starzyk, N.; Van Bakel, B. W. M.; Klompmaker, A. A.; Schweigert, G.; Fraaije, R. H. B. (2023). "A new approach to the systematics of Laeviprosopon (Brachyura: Homolidae), with remarks on molting process of the early brachyurans". Palaeontologia Electronica. 26 (1). 26.1.a10. doi:10.26879/1204.

[67] Fraaije, R. H. B.; van Bakel, B. W. M.; Jagt, J. W. M.; Wallaard, J. J. W.; De Coninck, L. (2023). "A new hermit crab (Anomura, Paguroidea) from the middle Albian of Wissant, Pas-de-Calais (northern France)". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 307 (2): 107–111. doi:10.1127/njgpa/2023/1117. S2CID 257561920.

[Meroncarcinus-68] van Bakel, B. W. M.; Guinot, D. (2023). "New genera and species of glaessneropsid crabs from the Lower and Middle Jurassic of France and Germany-Austria, and reconsolidation of Charassocarcinus Van Straelen, 1925". Geobios. doi:10.1016/j.geobios.2023.05.007. S2CID 259916458.

[69] Gašparič, R.; Tshudy, D.; Chan, T.-Y.; Ćorić, S. (2023). "Validation of Metanephrops serendipitus (Crustacea, Decapoda, Nephropidae), a deep-water lobster from lower Miocene of Meljski hrib (Maribor, Slovenia)". Zootaxa. 5323 (3): 440–442. doi:10.11646/zootaxa.5323.3.9. S2CID 260528714.

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[71] Charbonnier, S.; Garassino, A.; Gendry, D.; Devillez, J.; Picot, L. (2023). "The decapod crustacean fauna from the Late Jurassic of Cricqueboeuf, Normandy (France)". Geodiversitas. 45 (19): 573–588. doi:10.5252/geodiversitas2023v45a19.

[72] Mychko, E. V.; Schweitzer, C. E.; Feldmann, R. M.; Shmakov, A. S. (2023). "The first report of Necrocarcinus (Crustacea: Brachyura: Raninoida) from the Cenomanian of Central Russia". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 309 (1): 31–42. doi:10.1127/njgpa/2023/1146. S2CID 260661087.

[73] Guzmán, W.; Bermúdez, H. D.; Gómez-Cruz, A. de J.; F. J., Vega (2023). "Validation of Ophthalmoplax andina Guzmán, Bermúdez, Gómez-Cruz, & Vega (Decapoda: Brachyura: Portunoidea) from the late Campanian, Upper Cretaceous of Colombia". Zootaxa. 5315 (5): 495–497. doi:10.11646/zootaxa.5315.5.8. PMID 37518411. S2CID 259888756.

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[75] Nyborg, T.; Garassino, A.; Nyborg, B. (2023). "A new fossil frog crab (Brachyura, Lyreididae) from the Eocene of northeastern Pacific". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 307 (1): 29–39. doi:10.1127/njgpa/2023/1110. S2CID 256754390.

[76] Braig, F.; Haug, J. T.; Ahyong, S. T.; Garassino, A.; Schädel, M.; Haug, C. (2023). "Another piece in the puzzle of mantis shrimp evolution – fossils from the Early Jurassic Osteno Lagerstätte of Northern Italy". Comptes Rendus Palevol. 22 (2): 17–31. doi:10.5852/cr-palevol2023v22a2. S2CID 256217869.

[Zootaxa52273-77] Wallaard, J. J. W.; Fraaije, R. H. B.; Van Bakel, B. W. M.; Nance, J. R.; Lindholm, A.; Jagt, J. W. M. (2023). "New hermit crab species (Anomura, Paguroidea) from the upper Miocene St. Marys Formation of Maryland (USA), preserved in their host shells". Zootaxa. 5227 (3): 389–397. doi:10.11646/zootaxa.5227.3.7. PMID 37044682. S2CID 255668962.

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[79] Nyborg, T.; Garassino, A.; Vega, F. J. (2023). "Validation of Paromola roseburgensis Nyborg & Garassino (Brachyura: Homolidae) from the early Eocene of Oregon, USA". Zootaxa. 5318 (3): 441–442. doi:10.11646/zootaxa.5318.3.11. PMID 37518368. S2CID 260008133.

[Petersbuchia-80] Schweigert, G. (2023). "Validation of Petersbuchia Schweigert, a prosopid crab from the Upper Jurassic of Germany". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 308 (3): 289–290. doi:10.1127/njgpa/2023/1144. S2CID 259588399.

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[82] Ferratges, F. A.; Luque, J.; Domínguez, J. L.; Ossó, À.; Aurell, M.; Zamora, S. (2023). "The oldest dairoidid crab (Decapoda, Brachyura, Parthenopoidea) from the Eocene of Spain". Papers in Palaeontology. 9 (3). e1494. doi:10.1002/spp2.1494. S2CID 259124402.

[83] Pasini, G.; Garassino, A.; Charbonnier, S. (2023). "A new litogastrid lobster (Decapoda, Glypheoidea) from the Anisian (Middle Triassic) of the Dolomiti del Cadore (Belluno, Veneto, NE Italy)". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 307 (2): 101–105. doi:10.1127/njgpa/2023/1116. S2CID 257578672.

[84] Barros, O. A.; de Oliveira, P. V. (2023). "New Dendrobranchiata fossil preserved in the Brazilian Cretaceous (Aptian/Albian) from the Araripe Basin, Piauí State". Zootaxa. 5264 (4): 545–563. doi:10.11646/zootaxa.5264.4.5. PMID 37518032. S2CID 258205413.

[85] Liu, Y.; Fan, R.; Zong, R.; Gong, Y. (2023). "First occurrence of caryocaridids (Crustacea, Phyllocarida) in the Ordovician of North China". Palaeogeography, Palaeoclimatology, Palaeoecology. 623. 111638. Bibcode:2023PPP...623k1638L. doi:10.1016/j.palaeo.2023.111638. S2CID 258727455.

[86] Pazinato, P. G.; Müller, P.; Haug, J. T. (2023). "New species of Tanaidacea from Cretaceous Kachin amber, with a brief review of the fossil record of tanaidacean crustaceans". Fossil Record. 26 (1): 39–50. doi:10.3897/fr.26.99995. S2CID 256482676.

[87] Fraaije, R. H. B.; van Bakel, B. W. M.; Guinot, D.; Jagt, J. W. M. (2023). "Validation of Tanidromites maerteni Fraaije, Van Bakel, Guinot & Jagt, a species of crab (Crustacea, Decapoda, Brachyura) from Middle Jurassic (Bajocian) deposits of Maizet, Calvados, northwest France". Zootaxa. 5318 (3): 437–438. doi:10.11646/zootaxa.5318.3.9. PMID 37518370. S2CID 260017811.

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[89] Smith, C. P. A.; Aubier, P.; Charbonnier, S.; Laville, T.; Olivier, N.; Escarguel, G.; Jenks, J. F.; Bylund, K. G.; Fara, E.; Brayard, A. (2023). "Closing a major gap in mantis shrimp evolution - first fossils of Stomatopoda from the Triassic". Bulletin of Geosciences. 98 (1): 95–110. doi:10.3140/bull.geosci.1864. S2CID 258089800.

[90] Kato, H.; Taru, H.; Haga, T.; Sugita, Y. (2023). "Decapod crustaceans from the Miocene Itsukaichi Basin, western Tokyo, Japan, including a new species of Trichopeltarion (Brachyura: Trichopeltariidae)". Bulletin of the Mizunami Fossil Museum. 50 (1): 21–35. doi:10.50897/bmfm.50.1_21.

[91] Chény, C.; Charbonnier, S.; Audo, D. (2023). "Middle Jurassic lobsters (Crustacea, Decapoda) from Normandy, France". Geodiversitas. 45 (4): 139–161. doi:10.5252/geodiversitas2023v45a4. S2CID 257696140.

[92] Ossó, À.; Ng, P. K. L. (2023). "On the systematic placement of the fossil crab Lathahypossia aculeata (Busulini, Tessier & Visentin, 1984) (Crustacea: Decapoda: Brachyura)". Zootaxa. 5351 (2): 265–275. doi:10.11646/zootaxa.5351.2.4.

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[AlcheringaLuoetal-95] Luo, Z.; Wang, R.; Amuti, A.; Deng, Y.; Sun, Y.; Qie, W.; Song, J. (2023). "Late Carboniferous (Pennsylvanian) ostracods from East Junggar in Xinjiang, northwestern China". Alcheringa: An Australasian Journal of Palaeontology. 47: 31–44. doi:10.1080/03115518.2022.2157047. S2CID 256215419.

[JPS92-96] Tanaka, G. (2023). "Paleogeographical and paleoenvironmental significance of ostracodes from the Pennsylvanian Nagaiwa Formation, northeast Japan". Journal of Paleontology. 97 (Supplement S92): 1–33. Bibcode:2023JPal...97S...1T. doi:10.1017/jpa.2022.108. S2CID 257666299.

[Hawramyetal-97] Hawramy, O. A.; Al-Obidee, W. Y.; Aziz, N. M.; Zhang, X. (2023). "Campanian-Maastrichtian Ostracods (Crustacea) From the Shiranish Formation, Dukan Area, Kurdistan Province, Northern Iraq". Iraqi Geological Journal. 56 (1C): 74–93. doi:10.46717/igj.56.1C.6ms-2023-3-17. S2CID 257908690.

[98] Camilleri, T. T. A.; Weldon, E. A.; Warne, M. T. (2023). "Early Devonian Ostracoda from the Norton Gully Sandstone, southeastern Australia". Alcheringa: An Australasian Journal of Palaeontology: 1–13. doi:10.1080/03115518.2023.2223658. S2CID 260363168.

[KhoslaetalDeccan-99] Khosla, A.; Verma, O.; Kania, S.; Lucas, S. (2023). "Indian Late Cretaceous-Early Palaeocene Deccan Microbiota from the Intertrappean Beds of the Chhindwara District, Madhya Pradesh and Their Systematic Palaeontology". In A. Khosla; O. Verma; S. Kania; S. Lucas (eds.). Microbiota from the Late Cretaceous-Early Palaeocene Boundary Transition in the Deccan Intertrappean Beds of Central India. Systematics and Palaeoecological, Palaeoenvironmental and Palaeobiogeographical Implications. Topics in Geobiology. Vol. 54. Springer. pp. 77–205. doi:10.1007/978-3-031-28855-5_4. ISBN 978-3-031-28854-8.

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[PR273-101] Williams, M.; Komatsu, T.; Nguyen, P. D.; Siveter, D. J.; McGairy, A.; Bush, H.; Goodall, R. H.; Harvey, T. H. P.; Stocker, C. P.; Legrand, J.; Yamada, T.; Miller, C. G. (2023). "Ostracods from the Upper Silurian Si Ka Formation, Northern Vietnam, and Their Paleobiogeographical Significance". Paleontological Research. 27 (3): 261–276. doi:10.2517/PR210032. S2CID 255441183.

[102] Zamudio, M. B.; Carignano, A. P. (2023). "Upper Miocene calcareous microfossils (Foraminifera and Ostracoda) from northwestern Argentina". Publicación Electrónica de la Asociación Paleontológica Argentina. 23 (2): 27–44. doi:10.5710/PEAPA.12.04.2023.455. S2CID 259866665.

[MMShahinetal-103] Shahin, A.; El Khawagah, S.; Shahin, B. (2023). "Implication of middle Eocene to early Miocene ostracodes from the N. El Faras-1X Well, Qattara Depression, Egypt, for paleobathymetry and paleobiogeographic reconstruction". Marine Micropaleontology. 181. 102244. Bibcode:2023MarMP.181j2244S. doi:10.1016/j.marmicro.2023.102244. S2CID 258158689.

[104] Karpuk, M. S. (2023). "New Data on Planktonic Foraminifera and Ostracods from the Barremian(?)–Aptian of the Eastern Crimea: Stratigraphy and Paleoecology". Stratigraphy and Geological Correlation. 31 (2): 89–108. Bibcode:2023SGC....31...89K. doi:10.1134/S0869593823020028. S2CID 258336679.

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[113] Tang, H. Y.; Mychko, E. V.; Feldmann, R. M.; Schweitzer, C. E.; Shaari, H.; Sone, M. (2021). "Malayacyclus gen. nov., the first Southeast Asian Cyclida (Crustacea) from the Early Carboniferous of Terengganu, Malaysia". Geological Journal. 56 (12): 6022–6030. doi:10.1002/gj.4128. S2CID 233522378.

[Echidnacaris-114] Paterson, J. R.; García-Bellido, D. C.; Edgecombe, G. D. (2023). "The early Cambrian Emu Bay Shale radiodonts revisited: morphology and systematics". Journal of Systematic Palaeontology. 21 (1). 2225066. doi:10.1080/14772019.2023.2225066. S2CID 259719252.

[115] Zhang, M.; Wu, Y.; Lin, W.; Ma, J.; Wu, Y.; Fu, D. (2023). "Amplectobeluid Radiodont Guanshancaris gen. nov. from the Lower Cambrian (Stage 4) Guanshan Lagerstätte of South China: Biostratigraphic and Paleobiogeographic Implications". Biology. 12 (4). 583. doi:10.3390/biology12040583. PMC 10136193. PMID 37106783.

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[117] Moysiuk, J.; Caron, J.-B. (2023). "A quantitative assessment of ontogeny and molting in a Cambrian radiodont and the evolution of arthropod development". Paleobiology: 1–16. doi:10.1017/pab.2023.18. S2CID 260850034.

[118] Bicknell, R. D. C.; Schmidt, M.; Rahman, I. A.; Edgecombe, G. D.; Gutarra, S.; Daley, A. C.; Melzer, R. R.; Wroe, S.; Paterson, J. R. (2023). "Raptorial appendages of the Cambrian apex predator Anomalocaris canadensis are built for soft prey and speed". Proceedings of the Royal Society B: Biological Sciences. 290 (2002). 20230638. doi:10.1098/rspb.2023.0638. PMC 10320336. PMID 37403497.

[Tarutaoia-119] Wernette, S. J.; Hughes, N. C.; Myrow, P. M.; Sardsud, A. (2023). "Trilobites of Thailand's Cambrian–Ordovician Tarutao Group and their geological setting". Papers in Palaeontology. 9 (5). e1516. doi:10.1002/spp2.1516.

[InghamForteyEllipsotaphrus-120] Ingham, J. K.; Fortey, R. A. (2023). "Review of the Ordovician pelagic trilobite Ellipsotaphrus (Cyclopygoidea, Ellipsotaphridae) and its allies, with new discoveries from Girvan, Ayrshire". Earth and Environmental Science Transactions of the Royal Society of Edinburgh. 113 (4): 313–336. doi:10.1017/S1755691022000263. S2CID 256292161.

[Veeversaspis-121] Smith, P. M.; Allen, H. J. (2023). "Early Ordovician trilobites from Barnicarndy 1 stratigraphic well of the southern Canning Basin, Western Australia". Alcheringa: An Australasian Journal of Palaeontology: 1–58. doi:10.1080/03115518.2023.2226194. S2CID 260724589.

[122] Kerber, G.; Pacheco, M. L. A. F.; Horodyski, R. S.; Graciolli, G. (2023). "Revealing new trilobites from the early Devonian Alto Garças Sub-basin, Brazil". Historical Biology: An International Journal of Paleobiology: 1–17. doi:10.1080/08912963.2023.2209098. S2CID 258593725.

[Triorygma-123] Westrop, S. R.; Eoff, J. D. (2023). "A Jiangshanian (Cambrian; Furongian) trilobite fauna from the Cow Head Group, western Newfoundland". Canadian Journal of Earth Sciences. 60 (8): 1244–1264. doi:10.1139/cjes-2023-0036. S2CID 260397862.

[124] Sun, Z.; Yang, A.; Zhao, F.; Zhuravlev, A. Yu.; Pan, B.; Hu, C.; Feng, Q.; Chen, X.; Zhu, M. (2023). "New trilobite assemblage from the lower Cambrian (upper Stage 4) of the Lake Zone, western Mongolia". Journal of Paleontology. 97 (3): 577–590. doi:10.1017/jpa.2023.23. S2CID 259770938.

[DBL52-125] Müller, P.; Hahn, G. (2023). "New data on trilobites of the Hillershausen Formation (Viséan, Rhenish Massif, Germany)". Dortmunder Beiträge zur Landeskunde - naturwissenschaftliche Mitteilungen. 52: 71–131.

[BasseLemkePhacopinae-126] Basse, M.; Lemke, U. (2023). "Class Trilobita in the Wocklum Limestone of the northern Rhenish Massif east of the Rhine (late Famennian, late Devonian) – Part 2. Phacopinae (Dianops, Rabienops, Spinicryphops, and Weyerites), with new species of Dianops and Rabienops". Dortmunder Beiträge zur Landeskunde - naturwissenschaftliche Mitteilungen. 52: 133–181.

[127] Adrain, J. M.; Pérez-Peris, F. (2023). "Funeralaspis n. gen.: a new odontopleurine trilobite from the early Middle Ordovician (Dapingian) of Death Valley, eastern California, USA, and the classification of Ordovician odontopleurines". Zootaxa. 5336 (4): 509–529. doi:10.11646/zootaxa.5336.4.3.

[128] Peng, S.-C.; Babcock, L. E.; Yang, X.-F.; Zhu, X.-J. (2023). "First complete specimens of Karslanus (Trilobita, Dameselloidea) from Longha Formation (Cambrian: Guzhangian), Yunnan, South China". Palaeoworld. doi:10.1016/j.palwor.2023.05.004. S2CID 258950129.

[129] Peng, S.-C.; Babcock, L. E.; Yang, X.-F.; Zhu, X.-J.; Liu, Y. (2023). "A new dameselloid trilobite from the Fulu Biota, Longha Formation (Cambrian: Guzhangian), Yunnan, South China, and revised classification of dameselloids". Palaeoworld. doi:10.1016/j.palwor.2023.01.006. S2CID 255934538.

[130] Holloway, D. J. (2023). "The trilobites Mitroplax gen. nov. and Spiniscutellum (Scutelluidae) from the Lower Devonian of Victoria, Australia". Bulletin of Geosciences. 98 (2): 181–198. doi:10.3140/bull.geosci.1879. S2CID 259614186.

[JPBlackwellWestrop-131] Blackwell, S. R.; Westrop, S. R. (2023). "A new Cambrian (Jiangshanian, Sunwaptan) trilobite fauna from Oklahoma and its biostratigraphic significance". Journal of Paleontology: 1–26. doi:10.1017/jpa.2023.40. S2CID 259872800.

[132] Tortello, M. F. (2023). "Trilobites from the Cedaria prolifica Zone (Cambrian, upper Guzhangian) of the Precordillera of Mendoza, western Argentina". Journal of Paleontology. 97 (3): 591–605. doi:10.1017/jpa.2023.34. S2CID 259384662.

[JPOmegops-133] Zong, R.-W. (2023). "Variation in eye lenses of two new Late Devonian phacopid trilobites from western Junggar, NW China". Journal of Paleontology: 1–15. doi:10.1017/jpa.2023.31. S2CID 258981236.

[corrigendumJPOmegops-134] Zong, R.-W. (2023). "Variation in eye lenses of two new Late Devonian phacopid trilobites from western Junggar, NW China – CORRIGENDUM". Journal of Paleontology: 1. doi:10.1017/jpa.2023.42.

[PJ574Oryctocephalus-135] Korovnikov, I. V. (2023). "New species of the genus Oryctocephalus Walcott from the Middle Cambrian of the Siberian Platform". Paleontological Journal. 57 (4): 410–416. doi:10.1134/S0031030123040068. S2CID 261104180.

[Signatoproetus-136] Basse, M.; Schöning, H. (2023). "The Proetinae (Trilobita) of the German Silurian. 1. Plesiowensus, Signatoproetus n.g., and Pulcherproetus". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 309 (3): 209–254. doi:10.1127/njgpa/2023/1160.

[137] Laibl, L.; Saleh, F.; Pérez-Peris, F. (2023). "Drifting with trilobites: The invasion of early post-embryonic trilobite stages to the pelagic realm". Palaeogeography, Palaeoclimatology, Palaeoecology. 613. 111403. Bibcode:2023PPP...613k1403L. doi:10.1016/j.palaeo.2023.111403. S2CID 255913893.

[138] Holmes, J. D. (2023). "Contrasting patterns of disparity suggest differing constraints on the evolution of trilobite cephalic structures during the Cambrian 'explosion'". Palaeontology. 66 (2). e12647. Bibcode:2023Palgy..6612647H. doi:10.1111/pala.12647. S2CID 258071940.

[139] Chen, Z.; Zhao, Y.; Yang, X.; Esteve, J.; Liu, X.; Chen, S. (2023). "Life cycle evolution in the trilobites Balangia and Duyunaspis from the Cambrian Series 2 (Stage 4) of South China". PeerJ. 11. e15068. doi:10.7717/peerj.15068. PMC 10100804. PMID 37065692.

[140] Wang, M.; Peng, S.; Zhang, X. (2023). "Taxonomic revision of the Cambrian trilobite Abadiella and its stratigraphic significance in Gondwana". Journal of Asian Earth Sciences. 105855. doi:10.1016/j.jseaes.2023.105855.

[141] Srivastava, S.; Hughes, N. C. (2023). "Morphology, variation, and systematics of the late Cambrian Laurentian dikelocephalid trilobite Walcottaspis vanhornei (Walcott, 1914)". Journal of Paleontology: 1–22. doi:10.1017/jpa.2023.29. S2CID 259391991.

[142] Hou, J.-B.; Hughes, N. C.; Hopkins, M. J. (2023). "Gill grooming in middle Cambrian and Late Ordovician trilobites". Geological Magazine. 160 (5): 905–910. Bibcode:2023GeoM..160..905H. doi:10.1017/S001675682300002X. S2CID 256917018.

[143] Hou, J.-B.; Hughes, N. C.; Hopkins, M. J.; Shu, D. (2023). "Gill function in an early arthropod and the widespread adoption of the countercurrent exchange mechanism". Royal Society Open Science. 10 (8). 230341. doi:10.1098/rsos.230341. PMC 10427831. PMID 37593708.

[144] Losso, S. R.; Thines, J. E.; Ortega-Hernández, J. (2023). "Taphonomy of non-biomineralized trilobite tissues preserved as calcite casts from the Ordovician Walcott-Rust Quarry, USA". Communications Earth & Environment. 4. 330. doi:10.1038/s43247-023-00981-5.

[145] Laibl, L.; Drage, H. B.; Pérez-Peris, F.; Schöder, S.; Saleh, F.; Daley, A. C. (2023). "Babies from the Fezouata Biota: Early developmental trilobite stages and their adaptation to high latitudes". Geobios. doi:10.1016/j.geobios.2023.06.005. S2CID 260694824.

[146] Schoenemann, B.; Clarkson, E. N. K. (2023). "The median eyes of trilobites". Scientific Reports. 13 (1). 3917. Bibcode:2023NatSR..13.3917S. doi:10.1038/s41598-023-31089-7. PMC 9995485. PMID 36890176.

[147] Esteve, J.; Hughes, N. C. (2023). "Developmental and functional controls on enrolment in an ancient, extinct arthropod". Proceedings of the Royal Society B: Biological Sciences. 290 (2000). 20230871. doi:10.1098/rspb.2023.0871. PMC 10265026. PMID 37312547.

[148] Esteve, J.; López-Pachón, M. (2023). "Swimming and feeding in the Ordovician trilobite Microparia speciosa shed light on the early history of nektonic life habits". Palaeogeography, Palaeoclimatology, Palaeoecology. 625. 111691. Bibcode:2023PPP...625k1691E. doi:10.1016/j.palaeo.2023.111691. S2CID 259788614.

[149] Kraft, P.; Vaškaninová, V.; Mergl, M.; Budil, P.; Fatka, O.; Ahlberg, P. E. (2023). "Uniquely preserved gut contents illuminate trilobite palaeophysiology". Nature. 622 (7983): 545–551. doi:10.1038/s41586-023-06567-7. PMC 10584673. PMID 37758946.

[150] Gishlick, A. D.; Fortey, R. A. (2023). "Trilobite tridents demonstrate sexual combat at 400 Mya". Proceedings of the National Academy of Sciences of the United States of America. 120 (4). e2119970120. Bibcode:2023PNAS..12019970G. doi:10.1073/pnas.2119970120. PMC 9942788. PMID 36649420.

[151] Ma, J.; Yin, J.; Liu, Y.; Du, X.; Liu, S.; Zong, R. (2023). "The latest encrinurid trilobites from the Lower Devonian of Xinjiang, Northwest China". Geological Magazine: 1–8. doi:10.1017/S0016756823000596.

[152] Bault, V. (2023). "Trilobites showed strong resilience capacity through the Late Devonian events despite an inexorable decline". Palaeogeography, Palaeoclimatology, Palaeoecology. 111807. doi:10.1016/j.palaeo.2023.111807.

[153] Esteve, J.; Rubio, P. (2023). "Understanding locomotion in trilobites by means of three-dimensional models". iScience. 26 (9). 107512. doi:10.1016/j.isci.2023.107512. PMC 10460995. PMID 37646017. S2CID 260412390.

[154] Bault, V.; Crônier, C.; Monnet, C.; Balseiro, D.; Serra, F.; Waisfeld, B.; Bignon, A.; Rustán, J. J. (2023). "Rise and fall of the phacopids: the morphological history of a successful trilobite family". Palaeontology. 66 (5). e12673. doi:10.1111/pala.12673.

[Paraclausocaris-155] Laville, T.; Forel, M.-B.; Charbonnier, S. (2023). "Re-appraisal of thylacocephalans (Euarthropoda, Thylacocephala) from the Jurassic La Voulte-sur-Rhône Lagerstätte". European Journal of Taxonomy (898): 1–61. doi:10.5852/ejt.2023.898.2295.

[156] Briggs, Derek E. G.; Siveter, David J.; Siveter, Derek J.; Sutton, Mark D.; Legg, David; Lamsdell, James C. (2023). "A vicissicaudatan arthropod from the Silurian Herefordshire Lagerstätte, UK". Royal Society Open Science. 10 (8). 230661. doi:10.1098/rsos.230661. PMC 10394423. PMID 37538743.

[157] Weidner, T.; Nielsen, A. T.; Ebbestad, J. O. R. (2023). Middle Cambrian agnostoids and trilobites from the Lower Allochthon, Swedish Caledonides. Fossils and Strata Series. Vol. 68. pp. 1–121. doi:10.18261/9788215068022-2023. ISBN 978-8-215-06801-5. S2CID 259227386.

[Electroprojapyx-158] Sánchez-García, A.; Sendra, A.; Davis, S.; Grimaldi, D. A. (2023). "Fossil diversity in 'dawn' hexapods (Diplura: Projapygoidea), with direct evidence for being chemically predaceous in the Cretaceous". Zoological Journal of the Linnean Society. 198 (3): 847–870. doi:10.1093/zoolinnean/zlac101.

[159] Haug, J. T.; Fraaije, R. H. B.; Haug, C. (2023). "A new species of possible archipolypodan millipede from the Carboniferous of the Netherlands with unusually long tergites". Comptes Rendus Palevol. 22 (29): 595–604. doi:10.5852/cr-palevol2023v22a29.

[Rostricampa-160] Sánchez-García, A.; Sendra, A.; Davis, S. R.; Grimaldi, D. A. (2023). "'Dawn' hexapods in Cenozoic ambers (Diplura: Campodeoidea)". Zoological Journal of the Linnean Society. doi:10.1093/zoolinnean/zlad118.

[161] Haug, G. T.; Haug, J. T.; Haug, C. (2023). "Convergent evolution of defensive appendages – a lithobiomorph-like centipede with a scolopendromorph-type ultimate leg from about 100 million-year-old amber". Palaeobiodiversity and Palaeoenvironments. doi:10.1007/s12549-023-00581-3. S2CID 259349020.

[162] Zong, R.; Edgecombe, G. D.; Liu, B.; Wang, Y.; Yin, J.; Ma, J.; Xu, H. (2023). "Silurian freshwater arthropod from northwest China". Papers in Palaeontology. 9 (2). e1488. doi:10.1002/spp2.1488. S2CID 257843305.

[Tonglaiia-163] Zhu, Y.; Zeng, H.; Liu, Y.; Zhao, F. (2023). "New artiopodan euarthropods from the Chengjiang fauna (Cambrian, Stage 3) at Malong, Yunnan, China". Acta Palaeontologica Polonica. 68 (3): 427–440. doi:10.4202/app.01080.2023.

[164] Du, K.; Bruton, D. L.; Yang, J.; Zhang, X. (2023). "An early Cambrian Sidneyia (Arthropoda) resolves the century-long debate of its head organization". Science China Earth Sciences. 66 (3): 521–527. Bibcode:2023ScChD..66..521D. doi:10.1007/s11430-022-1019-8. S2CID 257177978.

[165] Edgecombe, G. D.; Strange, S. E.; Popovici, G.; West, T.; Vahtera, V. (2023). "An Eocene fossil plutoniumid centipede: a new species of Theatops from Baltic Amber (Chilopoda: Scolopendromorpha)". Journal of Systematic Palaeontology. 21 (1). 2228796. doi:10.1080/14772019.2023.2228796. S2CID 260045944.

[166] Berks, H. O.; Nielsen, M. L.; Flannery-Sutherland, J.; Nielsen, A. T.; Park, T.-Y. S.; Vinther, J. (2023). "A possibly deep branching artiopodan arthropod from the lower Cambrian Sirius Passet Lagerstätte (North Greenland)". Papers in Palaeontology. 9 (3). e1495. doi:10.1002/spp2.1495. S2CID 259253098.

[167] O'Flynn, R. J.; Liu, Y.; Hou, X.; Mai, H.; Yu, M.; Zhuang, S.; Williams, M.; Guo, J.; Edgecombe, G. D. (2023). "The early Cambrian Kylinxia zhangi and evolution of the arthropod head". Current Biology. doi:10.1016/j.cub.2023.08.022. PMID 37643622.

[168] Zhang, C.; Liu, Y.; Ortega-Hernández, J.; Wolfe, J. M.; Jin, C.; Mai, H.; Hou, X.; Guo, J.; Zhai, D. (2023). "Three-dimensional morphology of the biramous appendages in Isoxys from the early Cambrian of South China, and its implications for early euarthropod evolution". Proceedings of the Royal Society B: Biological Sciences. 290 (1997). 20230335. doi:10.1098/rspb.2023.0335. PMC 10113025. PMID 37072042.

[169] Ma, J.; Pates, S.; Wu, Y.; Lin, W.; Liu, C.; Wu, Y.; Zhang, M.; Fu, D. (2023). "Ontogeny and brooding strategy of the early Cambrian arthropod Isoxys minor from the Qingjiang biota". Frontiers in Ecology and Evolution. 11. 1174564. doi:10.3389/fevo.2023.1174564.

[170] Drage, H. B.; Legg, D. A.; Daley, A. C. (2023). "Novel marrellomorph moulting behaviour preserved in the Lower Ordovician Fezouata Shale, Morocco". Frontiers in Ecology and Evolution. 11. 1226924. doi:10.3389/fevo.2023.1226924.

[171] Laibl, L.; Gueriau, P.; Saleh, F.; Pérez-Peris, F.; Lustri, L.; Drage, H. B.; Bath Enright, O. G.; Potin, G. J.-M.; Daley, A. C. (2023). "Early developmental stages of a Lower Ordovician marrellid from Morocco suggest simple ontogenetic niche differentiation in early euarthropods". Frontiers in Ecology and Evolution. 11. 1232612. doi:10.3389/fevo.2023.1232612.

[172] Laville, T.; Hegna, T. A.; Forel, M.-B.; Darroch, S.; Charbonnier, S. (2023). "New look at Concavicaris woodfordi (Euarthropoda: Pancrustacea?) using micro-computed tomography". Palaeontologia Electronica. 26 (1). 26.1.a1. doi:10.26879/1218.

[173] Wellman, C. H.; Lopes, G.; McKellar, Z.; Hartley, A. (2023). "Age of the basal 'Lower Old Red Sandstone' Stonehaven Group of Scotland: The oldest reported air-breathing land animal is Silurian (late Wenlock) in age". Journal of the Geological Society. doi:10.1144/jgs2023-138.

[174] Lheritier, M.; Perroux, M.; Vannier, J.; Escarguel, G.; Wesener, T.; Moritz, L.; Chabard, D.; Adrien, J.; Perrier, V. (2023). "Fossils from the Montceau-les-Mines Lagerstätte (305 Ma) shed light on the anatomy, ecology and phylogeny of Carboniferous millipedes". Journal of Systematic Palaeontology. 21 (1). 2169891. doi:10.1080/14772019.2023.2169891. S2CID 256977924.

[175] Kimmig, J.; Pates, S.; LaVine, R. J.; Krumenacker, L. J.; Whitaker, A. F.; Strotz, L. C.; Jamison, P. G.; Gunther, V. G.; Gunther, G.; Witte, M.; Daley, A. C.; Lieberman, B. S. (2023). "New soft-bodied panarthropods from diverse Spence Shale (Cambrian; Miaolingian; Wuliuan) depositional environments". Journal of Paleontology: 1–24. doi:10.1017/jpa.2023.24. S2CID 259014568.

[176] Naimark, E. B.; Sizov, A. V.; Khubanov, V. B. (2023). "Kimiltei Is a New Late Cambrian Lagerstätte with the Faunistic Complex of Arthropods (Euthycarcinoidae, Synziphosurina, and Chasmataspidida) in the Irkutsk Region". Doklady Earth Sciences. 512 (1): 859–870. doi:10.1134/S1028334X2360127X. S2CID 260786737.

[177] Braddy, S. J. (2023). "A new arthropod resting trace from the middle Cambrian of Texas". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 309 (3): 291–300. doi:10.1127/njgpa/2023/1163.