Rhomphaiodon is an extinct genus of cartilaginous fish in the order Synechodontiformes that has been found in Late Triassic and Early Jurassic deposits located in Europe.G. Cuny and S. Risnes. 2005. The Enameloid Microstructure of the Teeth of Synechodontiform Sharks (Chondrichthyes: Neoselachii). PalArch 3(2):9-19 The type species R. minor was originally named as a species of Hybodus in 1837 by Louis Agassiz.L. Agassiz. 1837. Recherches Sur Les Poissons Fossiles. Tome III (livr. 8-9). Imprimérie de Petitpierre, Neuchatel viii-72 A second species, R. nicolensis, was added when the genus was named in 1993.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
Fossil distribution Fossils of Rhomphaiodon have been found in:
Triassic Grès de Mortinsart Formation, Norian-Rhaetian Belgium (R. minor)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 Sables de Mortinsart Formation, Norian Belgium (R. minor)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 near Saint-Laurent-du-Var, Rhaetian France (R. minor)G. Corroy. 1934. Les poissons et les reptiles du Muschelkalk et du Rhetien de Basse-Provence. Bulletin de la Société geologique de France 3, serie 5(5-6):475-483V. 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 Gres à Avicula contorta Formation, Rhaetian France (R. nicolensis)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 Apfelstädtgrundes, Rhaetian Germany (R. minor)R. Amthor. 1908. Das Bonebed im Rhät des Apfelstädtgrundes südöstlich von Gotha. Zeitschrift für Naturwissenschaften 80:91-96 Kössener Schichten Formation (Cochloceras suessi ammonoid zone), Rhaetian Germany (R. minor)H. Zapfe. 1976. Ein großer Ichthyosaurier aus den Kössener Schichten der Nordalpen. Annalen des Naturhistorischen Museums in Wien 80:239-250 Steinmergel Group, Norian Luxembourg (R. minor)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):357-373P. 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 Magnesian Conglomerate, Rhaetian England (R. minor)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 Westbury Formation, Rhaetian England (R. minor)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):127-133C. J. Duffin. 1982. Teeth of a new selachian from the Upper Triassic of England. Neues Jahrbuch für Geologie und Paläontologie, Monatshefte 1982(3):156-166P. Egerton. 1854. On some new genera and species of fossil fishes. The Annals and Magazine of Natural History, Second Series 13:433-436 Microlestes Quarry, Frome, Rhaetian England (R. minor)R. Owen. 1871. Monograph of the fossil Mammalia of the Mesozoic formations. 24(110):vi-115 Manor Farm Quarry, Gloucestershire, Rhaetian England (R. minor) Penarth Group, Rhaetian England (R. minor) Cribbs Causeway, Bristol, Rhaetian England (R. minor) Pullastra Sandstone, Rhaetian England (R. minor)W. A. Macfadyen. 1970. Geological Highlights of the West Country. A Nature Conservancy Handbook 1-296
Jurassic Aubange, Fleche (Hildoceras bifrons zone), Toarcian Belgium (R. minor)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 Dudelange, Ginzebierg, Toarcian Luxembourg (R. minor)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 Windsor Hill, Buckinghamshire (Lias Group?), Pliensbachian England (R. minor)W. Kühne. 1956. The Liassic therapsid Oligokyphus. British Museum (Natural History), London 1-149
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