Rhomphaiodon
Rhomphaiodon is an extinct genus of prehistoric sharks in the order Synechodontiformes that has been found in Late Triassic and Early Jurassic deposits located in Europe.[1] The type species R. minor was originally named as a species of Hybodus in 1837 by Louis Agassiz.[2] A second species, R. nicolensis, was added when the genus was named in 1993.[3]
| Rhomphaiodon Temporal range: Late Triassic-Early Jurassic, | |
|---|---|
| Scientific classification | |
| Kingdom: | |
| Phylum: | |
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| Genus: | †Rhomphaiodon Duffin, 1993 |
| Type species | |
| †Rhomphaiodon minor Duffin, 1993 | |
| Species | |
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Fossil distribution
Fossils of Rhomphaiodon have been found in:[4]
- Triassic
- Grès de Mortinsart Formation, Norian-Rhaetian Belgium (R. minor)[5]
- Sables de Mortinsart Formation, Norian Belgium (R. minor)[6]
- near Saint-Laurent-du-Var, Rhaetian France (R. minor)[7][8]
- Gres à Avicula contorta Formation, Rhaetian France (R. nicolensis)[9][3]
- Apfelstädtgrundes, Rhaetian Germany (R. minor)[10]
- Kössener Schichten Formation (Cochloceras suessi ammonoid zone), Rhaetian Germany (R. minor)[11]
- Steinmergel Group, Norian Luxembourg (R. minor)[12][13]
- Magnesian Conglomerate, Rhaetian England (R. minor)[14][15]
- Westbury Formation, Rhaetian England (R. minor)[16][17][18]
- Microlestes Quarry, Frome, Rhaetian England (R. minor)[19]
- Manor Farm Quarry, Gloucestershire, Rhaetian England (R. minor)[1]
- Penarth Group, Rhaetian England (R. minor)[1]
- Cribbs Causeway, Bristol, Rhaetian England (R. minor)[1]
- Pullastra Sandstone, Rhaetian England (R. minor)[20]
- Jurassic
- Aubange, Fleche (Hildoceras bifrons zone), Toarcian Belgium (R. minor)[21]
- Dudelange, Ginzebierg, Toarcian Luxembourg (R. minor)[22]
- Windsor Hill, Buckinghamshire (Lias Group?), Pliensbachian England (R. minor)[23]
References
- G. Cuny and S. Risnes. 2005. The Enameloid Microstructure of the Teeth of Synechodontiform Sharks (Chondrichthyes: Neoselachii). PalArch 3(2):9-19
- L. Agassiz. 1837. Recherches Sur Les Poissons Fossiles. Tome III (livr. 8-9). Imprimérie de Petitpierre, Neuchatel viii-72
- C. J. Duffin. 1993. Late Triassic sharks teeth (Chondrichthyes, Elasmobranchii) from Saint-Nicolas-de-Port (north-east France). Belgian Geological Survey, Professional Paper, Elasmobranches et Stratigraphie 264(1993):7-32
- "Rhomphaiodon". Fossilworks. Retrieved 17 December 2021.
- C. J. Duffin and D. Delsate. 1993. The age of the Upper Triassic vertebrate fauna from Attert (Province of Luxembourg, Belgium). Belgian Geological Survey, Professional Paper, Elasmobranches et Stratigraphie 264(1993):33-44
- C. J. Duffin, P. Coupatez, J. C. Lepage and G. Wouters. 1983. Rhaetian (Upper Triassic) marine faunas from "Le Golfe du Luxembourg" in Belgium (preliminary note). Bulletin de la Société Belge de Géologie 92(4):311-315
- G. Corroy. 1934. Les poissons et les reptiles du Muschelkalk et du Rhetien de Basse-Provence. Bulletin de la Societe geologique de France 3, serie 5(5-6):475-483
- V. Fischer, H. Capetta, P. Vincent, G. Garcia, S. Goolaerts, J. E. Martin, D. Roggero and X. Valentin. 2014. Ichthyosaurs from the French Rhaetian indicate a severe turnover across the Triassic-Jurassic boundary. Naturwissenschaften 101:1027-1040
- D. Sigogneau-Russell. 1983. Nouveaux taxons de mammifères rhétiens [New taxa of Rhaetian mammals]. Second Symposium on Mesozoic Terrestrial Ecosystems, Jadwisin 1981. Acta Palaeontologica Polonica 28(1-2):233-249
- R. Amthor. 1908. Das Bonebed im Rhät des Apfelstädtgrundes südöstlich von Gotha. Zeitschrift für Naturwissenschaften 80:91-96
- H. Zapfe. 1976. Ein großer Ichthyosaurier aus den Kössener Schichten der Nordalpen. Annalen des Naturhistorischen Museums in Wien 80:239-250
- G. Hahn, J. C. Lepage, and G. Wouters. 1984. Cynodontier-Zähne aus der Ober-Trias von Medernach, Grossherzogtum Luxemburg [Cynodontian teeth from the Upper Triassic of Medernach, Grand Duchy of Luxembourg]. Bulletin de la Société Belge de Géologie 93(4):357-373
- P. Godefroit, G. Cuny, D. Delsate and M. Roche. 1998. Late Triassic vertebrates from Syren (Luxembourg). Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen 210(3):305-343
- Foffa, D.; D. I. Whiteside; P. A. Viegas, and M. J. Benton. 2014. Vertebrates from the Late Triassic Thecodontosaurus-bearing rocks of Durdham Down, Clifton (Bristol, UK). Proceedings of the Geologists' Association 125. 317–332. .
- W. Buckland. 1824. Reliquiæ Diluvianæ; or, Observations on the Organic Remains Contained in Caves, Fissures, and Diluvial Gravel, and on Other Geological Phenomena, Attesting the Action of an Universal Deluge. Second Edition. John Murray, London 1-30
- D. M. Martill and A. Dawn. 1986. Fossil vertebrates from new exposures of the Westbury Formation (Upper Triassic) at Newark, Nottinghamshire. Mercian Geologist 10(2):127-133
- C. J. Duffin. 1982. Teeth of a new selachian from the Upper Triassic of England. Neues Jahrbuch für Geologie und Paläontologie, Monatshefte 1982(3):156-166
- P. Egerton. 1854. On some new genera and species of fossil fishes. The Annals and Magazine of Natural History, Second Series 13:433-436
- R. Owen. 1871. Monograph of the fossil Mammalia of the Mesozoic formations. 24(110):vi-115
- W. A. Macfadyen. 1970. Geological Highlights of the West Country. A Nature Conservancy Handbook 1-296
- D. Delsate and P. Godefroit. 1995. Chondrichtyens du Toarcien inferieur d'Aubange (Lorraine belge). Belgian Geological Survey, Professional Paper, Elasmobranches et Stratigraphie 278(1994):23-43
- D. Delsate. 2003. Une nouvelle faune des poissons et requins Toarciens du sud du Luxembourg (Dudelange) et de L'Allemange (Schömberg). Bulletin de l'Académie Lorrain des Sciences 42:13-49
- W. Kühne. 1956. The Liassic therapsid Oligokyphus. British Museum (Natural History), London 1-149
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