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List Of Prehistoric Cartilaginous Fish Genera
This list of prehistoric cartilaginous fish genera is an attempt to create a comprehensive listing of all genera that have ever been included in the class chondrichthyes ''and'' are known from the fossil record. This list excludes purely vernacular terms, genera that are now considered invalid, doubtful (nomina dubia), or were not formally published (nomina nuda), as well as junior synonyms of more established names, and genera that are no longer considered to be cartilaginous fish. It includes all commonly accepted genera. This list currently contains 804 generic names. * Extinct genera are marked by a dagger ( †). * Extant taxon genera are bolded. Naming conventions and terminology Naming conventions and terminology follow the International Code of Zoological Nomenclature. Technical terms used include: * Junior synonym: A name which describes the same taxon as a previously published name. If two or more genera are formally designated and the type specimens are later ass ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sarcoprion2DB
''Sarcoprion'' (from the Ancient Greek for "flesh saw") is an extinct genus of eugeneodontid holocephalids from the Permian of Greenland. Similar to other eugeneodontids such as ''Edestus'' and ''Helicoprion'', it was best known for its extremely bizarre tooth morphology compared to other species of sharks and their closest relatives, the chimaeras. Compared to other members of the Helicoprionidae (teeth of Louis Agassiz, Agassiz), its "tooth whorls" were found to be sharper, more compact, and in better condition than other sharks of the time, and refrained from growing to extremely unwieldy forms that would raise questions about its ability to feed properly. The genus contains one species, ''Sarcoprion edax'' ("gluttonous flesh saw"), found in Permian-aged marine strata of ''Meddelelser om Grønland''. Description ''Sarcoprion'' had a jaw and mouth structure which allowed it to be more hydrodynamic, reducing the size and shape of the tooth whorl and increasing the size of the ro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abdounia Finalis
''Abdounia'' is an extinct genus of requiem shark which lived during the Paleogene period. It is mainly known from isolated teeth. It is one of the earliest requiem sharks, and attained widespread success in North America, Europe, and Africa. Locations They are known from the paleogene of Morocco, France, Belgium, Russia, North Carolina, Georgia, Alabama, and Virginia. In the lower Nanjemoy Formation of Virginia, they are the most common fossil shark tooth. By the end of the Oligocene Epoch the genus is severely reduced, probably due to competition with other Carcharhiniformes like Carcharhinus. Species The following are species currently attributed to this genus. Note this may be an under-representation of actual diversity, as living relatives have extremely similar teeth across species. *'' Abdounia africana'' (Danian-Thanetian) *'' Abdounia beaugei'' (Paleocene-Eocene ) *'' Abdounia enniskelleni'' (Eocene) *'' Abdounia furimskyi'' (upper Eocene-Rupelian ) *'' Abdounia lapierre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acondylacanthus
''Acondylacanthus'' is an extinct genus of Euselachian shark from the Paleozoic era. The type species is ''A.'' ''gracilis.'' Most species are known from the Carboniferous of America and the British isles. ''A. jaekeli'' is known from the upper Frasnian of Germany and the Upper Famennian The Famennian is the latter of two faunal stages in the Late Devonian Epoch. The most recent estimate for its duration estimates that it lasted from around 371.1 million years ago to 359.3 million years ago. An earlier 2012 estimate, still used b ... of Russia. This genus is based entirely upon isolated dorsal fin spines, and thus may later be found synonymous with tooth-based genera. Many species have been ascribed to this genus, though there has been some confusion with ''Ctenachanthus''. This genus is in need of review and research. References {{Taxonbar, from = Q104856454, Fossilworks = 206298 Elasmobranchii Prehistoric shark genera ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acmoniodus
''Acmoniodus'' is a poorly known extinct genus of Holocephalian fish from the Devonian period. It is known only by a singular species described from the lower Frasnian-aged Geneseo Shale of New York (state) New York, officially the State of New York, is a state in the Northeastern United States. It is often called New York State to distinguish it from its largest city, New York City. With a total area of , New York is the 27th-largest U.S. stat ...: ''A. clarkei.''HUSSAKOF, L. & BRYANT, W.L. (1918). Catalog of the fossil fishes in the Museum of the Buffalo Society of Natural Sciences. Bulletin of the Buffalo Society of Natural Sciences, 12: 1–346 References {{Taxonbar, from = Q104856381, fossilworks = 34754 Holocephali Prehistoric fish genera Late Devonian fish Paleontology in New York (state) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acanthorhina
''Acanthorhina'' is an extinct genus of chimaera from the Toarcian age of the Jurassic period. It currently contains a single species, ''A. jaekeli'' known from the Posidonia shale The Posidonia Shale (german: Posidonienschiefer, also called Schistes Bitumineux in Luxembourg) geologically known as the Sachrang Formation, is an Early Jurassic (Toarcian) geological formation of southwestern and northeast Germany, northern Swit ... of Holzmaden, Germany. References Chimaeriformes Prehistoric chordate genera {{paleo-cartilaginous-fish-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acanthorhachis
''Acanthorhachis'' is an enigmatic extinct genus of chondrichthyan from the Carboniferous period. Its name is derived from the Greek word ''acanthos'' meaning "spine" and the Greek suffix for spine, -''rhachis''. This is due to the spine-like dermal denticles and their subsidiary spines, which coated the exterior of the animal. The authors who erected this genus suggested the common name "The Spiny Spined Shark." It is closely related to ''Listracanthus''. It differs from it in the size, structure, and distribution of dermal spines. It is currently monotypic, containing only the species ''A. spinatus''. This shark is thus far only described from the British Isles. ''Acanthorhachis'' was first described from the Westphalian-aged lower coal measures of Yorkshire, England. It occurs rarely in Viséan-aged Eyam Limestone of Derbyshire, England Derbyshire ( ) is a ceremonial county in the East Midlands, England. It includes much of the Peak District National Park, the southern en ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abdounia Vassilyevae
''Abdounia'' is an extinct genus of requiem shark which lived during the Paleogene period. It is mainly known from isolated teeth. It is one of the earliest requiem sharks, and attained widespread success in North America, Europe, and Africa. Locations They are known from the paleogene of Morocco, France, Belgium, Russia, North Carolina, Georgia, Alabama, and Virginia. In the lower Nanjemoy Formation of Virginia, they are the most common fossil shark tooth. By the end of the Oligocene Epoch the genus is severely reduced, probably due to competition with other Carcharhiniformes like Carcharhinus. Species The following are species currently attributed to this genus. Note this may be an under-representation of actual diversity, as living relatives have extremely similar teeth across species. *'' Abdounia africana'' (Danian-Thanetian) *'' Abdounia beaugei'' (Paleocene-Eocene ) *'' Abdounia enniskelleni'' (Eocene) *'' Abdounia furimskyi'' (upper Eocene-Rupelian ) *'' Abdounia lapierre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abdounia Richteri
''Abdounia'' is an extinct genus of requiem shark which lived during the Paleogene period. It is mainly known from isolated teeth. It is one of the earliest requiem sharks, and attained widespread success in North America, Europe, and Africa. Locations They are known from the paleogene of Morocco, France, Belgium, Russia, North Carolina, Georgia, Alabama, and Virginia. In the lower Nanjemoy Formation of Virginia, they are the most common fossil shark tooth. By the end of the Oligocene Epoch the genus is severely reduced, probably due to competition with other Carcharhiniformes like Carcharhinus. Species The following are species currently attributed to this genus. Note this may be an under-representation of actual diversity, as living relatives have extremely similar teeth across species. *'' Abdounia africana'' (Danian-Thanetian) *'' Abdounia beaugei'' (Paleocene-Eocene ) *'' Abdounia enniskelleni'' (Eocene) *'' Abdounia furimskyi'' (upper Eocene-Rupelian ) *'' Abdounia lapierre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abdounia Recticona
''Abdounia recticona'' is an extinct species of requiem shark from the Eocene epoch The Eocene ( ) Epoch is a geological epoch that lasted from about 56 to 33.9 million years ago (mya). It is the second epoch of the Paleogene Period in the modern Cenozoic Era. The name ''Eocene'' comes from the Ancient Greek (''ēṓs'', "dawn .... It is known from isolated teeth in Europe and North America. References {{Taxonbar, from=Q104850503 Carcharhinidae Prehistoric sharks Eocene sharks ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abdounia Osipovae
''Abdounia'' is an extinct genus of requiem shark which lived during the Paleogene period. It is mainly known from isolated teeth. It is one of the earliest requiem sharks, and attained widespread success in North America, Europe, and Africa. Locations They are known from the paleogene of Morocco, France, Belgium, Russia, North Carolina, Georgia, Alabama, and Virginia. In the lower Nanjemoy Formation of Virginia, they are the most common fossil shark tooth. By the end of the Oligocene Epoch the genus is severely reduced, probably due to competition with other Carcharhiniformes like Carcharhinus. Species The following are species currently attributed to this genus. Note this may be an under-representation of actual diversity, as living relatives have extremely similar teeth across species. *'' Abdounia africana'' (Danian-Thanetian) *'' Abdounia beaugei'' (Paleocene-Eocene ) *'' Abdounia enniskelleni'' (Eocene) *'' Abdounia furimskyi'' (upper Eocene-Rupelian ) *'' Abdounia lapierre ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abdounia Minutissima
''Abdounia minutissima'' is an extinct species of requiem shark from the Eocene Epoch The Eocene ( ) Epoch is a geological epoch that lasted from about 56 to 33.9 million years ago (mya). It is the second epoch of the Paleogene Period in the modern Cenozoic Era. The name ''Eocene'' comes from the Ancient Greek (''ēṓs'', "dawn .... It is known from isolated teeth in England, Belgium and possibly the Chespeake Bay region of the eastern United States. References Carcharhinidae Prehistoric sharks Fossil taxa described in 1873 {{shark-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Abdounia Mesetae
''Abdounia'' is an extinct genus of requiem shark which lived during the Paleogene period. It is mainly known from isolated teeth. It is one of the earliest requiem sharks, and attained widespread success in North America, Europe, and Africa. Locations They are known from the paleogene of Morocco, France, Belgium, Russia, North Carolina, Georgia, Alabama, and Virginia. In the lower Nanjemoy Formation of Virginia, they are the most common fossil shark tooth. By the end of the Oligocene Epoch the genus is severely reduced, probably due to competition with other Carcharhiniformes like Carcharhinus. Species The following are species currently attributed to this genus. Note this may be an under-representation of actual diversity, as living relatives have extremely similar teeth across species. *''Abdounia africana'' (Danian-Thanetian) *''Abdounia beaugei'' (Paleocene-Eocene ) *''Abdounia enniskelleni'' (Eocene) *''Abdounia furimskyi'' (upper Eocene-Rupelian ) *''Abdounia lapierrei'' ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
