List of obsolete taxa

In the history of the Linnaean classification system, many taxa (e.g. species, genera, families, and higher taxonomic ranks) have become defunct or obsolete, and are no longer used.

Kingdoms

Taxon	Classification(s) used	Contents
Kingdom Bionta	Walton (1930)[1]

Taxon	Classification(s) used	Contents
Class Vermes	Linnaeus	Worms
Order Agriae	Linnaeus (1748)[2]	Anteaters and pangolins
Order Anthropomorpha	Linnaeus (1740,[3] 1748)[2]	1740: Primates, anteaters, and sloths 1748: Primates and sloths
Order Belluae	Linnaeus (1758,[4] 1766)[5]	1758: Horses and hippopotamuses 1766: as above plus pigs, and rhinoceroses
Order Bestiae	Linnaeus (1758)[4]	Pigs, armadillos, hedgehogs, moles, shrews, and opossums
Order Bruta	Linnaeus (1758,[4] 1766)[5]	1758: Elephants, manatees, sloths, anteaters, pangolins 1766: as above plus armadillos
Suborder Gravigrada
Order Insectivora	Several	Hedgehog, shrews, moles, tenrecs, golden moles, otter shrews, solenodons, and sometimes elephant-shrews, treeshrews, and colugos
Order Jumenta	Linnaeus (1740,[3] 1748)[2]	1740: Shrews, horses, elephants, hippopotamuses, and pigs 1748: as above plus rhinoceroses
Order Lipotyphla
Order and/or Suborder Pachydermata		Perissodactyls, elephants, hippopotamuses, peccaries, pigs, and sometimes camels
Order Quaternates	Blainville (1839)[6]	Gravigrada, Pachydermata and Ruminantia
Order Secundates	Blainville (1839)[6]	Chiroptera, Insectivora and Carnivora
Order Tertiates	Blainville (1839)[6]	Glires
Superorder Archonta		Primates, Bats, Colugos, Treeshrews, and sometimes Elephant shrews
Genus Simia		Apes (but not humans) and monkeys
Genus Tylognathus	Heckel	A variety of freshwater ray finned fish
Genus Brochis	Cope	Three Catfish in the family Callichthyidae

Taxon	Classification(s) used	Contents
Phylum Sarcodina		Actinopoda Rhizopoda Proteomyxa

Walton, Lee Barker (1930). "Studies Concerning Organisms Occurring in Water Supplies With Particular Reference to Those Founded in Ohio". Ohio Biological Survey Bulletin, 24. pp. 1–86.
Linnaeus, C. 1748. Systema naturae sistens regna tria naturae, in classes et ordines genera et species, redacta tabulisque aeneis illustrata. Lipsiae: Kiesewetter.
Linnaeus, C. 1740. Systema Naturae in quo Naturae Regna tria, secundum. Classes, Ordines, Genera, Species, systematice proponuntur. Stockholm: Kiesewetter.
Linnaeus, C. 1758. Systema naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Vol. 1: Regnum animale. Editio decima, reformata. Stockholm: Laurentii Salvii.
Linnaeus, C. 1766. Systema naturae per regna tria naturae, secundum classes, ordines, genera, species, cum characteribus, differentiis, synonymis, locis. Vol. 1: Regnum animale. Editio decima, reformata. Stockholm: Laurentii Salvii.
Blainville, Henri-Marie Ducrotay de (1839). "Nouvelle classification des Mammifères". Annales Françaises et Etrangères d'Anatomie et de Physiologie Appliquées à la Médicine et à l'Histoire Naturelle, 3. pp. 268–269.

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