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Dvinosaurs
Dvinosaurs are one of several new clades of Temnospondyl amphibians named in the phylogenetic review of the group by Yates and Warren 2000. They represent a group of primitive semi-aquatic to completely aquatic amphibians, and are known from the Late Carboniferous to the Early Triassic, being most common in the Permian period. Their distinguishing characteristics are a reduction of the otic notch; the loss of a flange on the rear side of the pterygoid; and 28 or more presacral vertebrae. Trimerorhachidae is the most basal family of dvinosaurs. Most other dvinosaurs are placed in the superfamily Dvinosauroidea. Within Dvinosauroidea are two families, Eobrachyopidae and Tupilakosauridae, as well as dvinosaurs that cannot be placed in either family, such as '' Dvinosaurus'' and ''Kourerpeton''. A 2008 phylogenetic analysis found Eobrachyopidae to be paraphyletic, representing a grade of basal dvinosauroids. Below is a cladogram showing the phylogenetic relationships of dvinosa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eobrachyopidae
Eobrachyopidae is a family of dvinosaurian temnospondyl Temnospondyli (from Greek language, Greek τέμνειν, ''temnein'' 'to cut' and σπόνδυλος, ''spondylos'' 'vertebra') is a diverse order (biology), order of small to giant tetrapods—often considered Labyrinthodontia, primitive amphi ...s. References Dvinosaurs Amphibian families {{Temnospondyli-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Slaugenhopia
''Slaugenhopia'' is an extinct genus of dvinosaurian temnospondyl within the family Tupilakosauridae. Fossils have been found from the Early Permian San Angelo Formation in Texas. The type and only species, ''S. texensis'', was named in 1962. It may be closely related to the dvinosaur ''Kourerpeton''. ''Slaugenhopia'' was once classified as a trimerorhachid but is now classified as a tupilakosaurid. Description and history ''Slaugenhopia'' was found from the San Angelo Formation within the Kahn Quarry of Driver Ranch in Knox County, Texas. Although it was known only from fragments, paleontologist Everett C. Olson reconstructed the entire skull when he named the genus in 1962. He placed the genus in the dvinosaur family Trimerorhachidae and thought that it was intermediate between the dvinosaurs ''Trimerorhachis'' and ''Dvinosaurus'' based on the shape of the skull. A mandible that was found earlier in Little Croton Creek was also referred to ''Slaugenhopia''. ''Slaugenhopia'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trimerorhachis
''Trimerorhachis'' is an extinct genus of dvinosaurian temnospondyl within the family Trimerorhachidae. It is known from the Early Permian of the southwestern United States, with most fossil specimens having been found in the Texas Red Beds. The type species of ''Trimerorhachis'', ''T. insignis'', was named by American paleontologist Edward Drinker Cope in 1878. Cope named a second species from Texas, ''T. mesops'', in 1896. The species ''T. rogersi'' (named in 1955) and ''T. greggi'' (named in 2013) are also from Texas, and the species ''T. sandovalensis'' (named in 1980) is from New Mexico. Description The length of the largest specimens of ''Trimerorhachis'' is estimated to have been almost a metre (3.3 feet) in length. ''Trimerorhachis'' has a large triangular head with upward-facing eyes positioned near the front of the skull. The trunk is long and the limbs are relatively short. The presence of a branchial apparatus indicates that ''Trimerorhachis'' had external gills in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neldasaurus
''Neldasaurus'' is an extinct genus of dvinosaurian temnospondyl within the family Trimerorhachidae Trimerorhachidae is a family of dvinosaurian temnospondyls, including Trimerorhachis and Neldasaurus. They are vertebrates and carnivores. Gallery Trimerorhachis insignis life restoration.jpg, '' Trimerorhachis insignis'', of the early Permia .... References Dvinosaurs Cisuralian temnospondyls of North America Permian geology of Texas Fossil taxa described in 1965 {{temnospondyli-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isodectes
''Isodectes'' is an extinct genus of dvinosaurian temnospondyl within the family Eobrachyopidae. The genus ''Saurerpeton'', named in 1909, is considered to be a junior synonym The Botanical and Zoological Codes of nomenclature treat the concept of synonymy differently. * In botanical nomenclature, a synonym is a scientific name that applies to a taxon that (now) goes by a different scientific name. For example, Linna ... of ''Isodectes''. References Dvinosaurs Cisuralian temnospondyls of North America Permian geology of Texas Fossil taxa described in 1896 Taxa named by Edward Drinker Cope {{temnospondyli-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Acroplous
''Acroplous'' is an extinct genus of dvinosaurian Temnospondyli within the family Eobrachyopidae. History of study ''Acroplous'' was described by Nicholas Hotton in 1959 for the type species, ''A. vorax''. The type locality is in Riley County, Kansas within the Speiser Shale ( early Permian). The original description only described the holotype (KUVP 9822), a partially disarticulated skull with isolated, associated postcrania. The genus name comes from the Greek word for 'swimming at the top,' based on Hotton's inference of the animal as being a surface cruising animal. The species name comes from the inferred voracity of the taxon. Hotton suggested that some material from the Dunkard Group of Pennsylvania that had been previously described by Romer (1952) as Saurerpeton obtusum''' might represent an Appalachian occurrence of ''Acroplous''. However, this material is not considered to belong to either ''Acroplous'' or to ''Isodectes'', the senior synonym of ''Saurerpeton,'' an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kourerpeton
''Kourerpeton'' is an extinct genus of dvinosaurian temnospondyl. Fossils of ''Kourerpeton'' were discovered in a window of a barber's shop in either Bisbee or Mesa, Arizona. ''Kourerpeton'' was named in 1976, with the type and only species being ''K. bradyi''. It was originally assigned to the monotypic family Kourerpetidae, which has been alternatively spelled Kourerpetontidae. Age and location Because it was not found ''in situ'', the provenance and age of ''Kourerpeton'' is unknown. The fossils are rumored to have been from the Glen Rose Formation near Glen Rose, Texas. Olson and Lammers (1976) discredited this idea because they noted that the Glen Rose Formation is Cretaceous in age, and therefore not a likely source for a temnospondyl. Several studies have claimed that it is Permian or Early Triassic in age. Warren (1999) suggested that ''Kourerpeton'' is from an unknown Guadalupian (Middle Permian) to Early Triassic locality in North America, or possibly even from a loc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tupilakosauridae
Tupilakosauridae is an extinct family of dvinosaurian temnospondyls. It contains the genera ''Slaugenhopia'', '' Thabanchuia'', ''Tupilakosaurus'', and possibly ''Kourerpeton''. Tupilakosaurs are known from Texas, Greenland, Russia, and France. The earliest tupilakosaur, ''Slaugenhopia'', is Early Permian in age while the latest known tupilakosaurs are Early Triassic in age. Derived tupilakosaurs possess embolomerous centra in their vertebrae, which are diplospondylous. They also have a deep notch in the pterygoid bone of the palate. Tupilakosaurs were aquatic, and used an undulatory mode of swimming much like that of eels. References External linksTupilakosauridaein the Paleobiology Database The Paleobiology Database is an online resource for information on the distribution and classification of fossil animals, plants, and microorganisms. History The Paleobiology Database (PBDB) originated in the NCEAS-funded Phanerozoic Marine Pale ... Dvinosaurs Amphibian fam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dvinosauroidea
Dvinosauroidea is a superfamily of dvinosaurian temnospondyls that lived during the Late Carboniferous period. Gallery Isodectes obtusus.jpg, '' Isodectes obtusus'', an eobrachyopid of the early Permian 01 or '01 may refer to: * The year 2001, or any year ending with 01 * The month of January * 1 (number) Music * '01 (Richard Müller album), 01'' (Richard Müller album), 2001 * 01 (Son of Dave album), ''01'' (Son of Dave album), 2000 * 01 (Urban ... of North America DvinosaurusDB2.jpg, '' Dvinosaurus primus'', a dvinosaurid of the middle to late Permian of Russia Dvin egreg1DB.jpg, '' Dvinosaurus egregius'', a dvinosaurid of the late Permian of Russia References Dvinosaurs {{carboniferous-animal-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tupilakosaurus
''Tupilakosaurus'' is an extinct genus of dvinosaurian temnospondyl within the family Tupilakosauridae. Two species are known: *''Tupilakosaurus heilmani'' Nielsen, 1954 — Wordie Creek Formation, Greenland *''Tupilakosaurus wetlugensis'' Shishkin, 1961 — Vokhma and Kopanskaya Formation, Nizhny Novgorod Oblast, Russia See also * Prehistoric amphibian * List of prehistoric amphibians This list of prehistoric amphibians is an attempt to create a comprehensive listing of all genera from the fossil record that have ever been considered to be amphibians, excluding purely vernacular terms. The list includes all commonly accepted g ... References Dvinosaurs Induan genera Triassic temnospondyls of Europe Fossils of Greenland Triassic Greenland Fossil taxa described in 1954 {{triassic-animal-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thabanchuia
''Thabanchuia'' is an extinct genus of dvinosaurian temnospondyl within the family Tupilakosauridae. It is known from the Lystrosaurus Assemblage Zone in Thaba N'chu, Free State, South Africa. The genus contains just one species, ''Thabanchuia oomie'', the type species. See also * Prehistoric amphibian * List of prehistoric amphibians This list of prehistoric amphibians is an attempt to create a comprehensive listing of all Genus, genera from the fossil record that have ever been considered to be amphibians, excluding purely vernacular terms. The list includes all commonly accep ... References Dvinosaurs Triassic amphibians Early Triassic amphibians of Africa Fossil taxa described in 1998 {{triassic-animal-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trimerorhachidae
Trimerorhachidae is a family of dvinosaurian temnospondyls, including Trimerorhachis and Neldasaurus. They are vertebrates and carnivores. Gallery Trimerorhachis insignis life restoration.jpg, '' Trimerorhachis insignis'', of the early Permian of Texas Neldasaurus wrightae.jpg, '' Neldasaurus wrightae'', of the early Permian of Texas Procuhy nazariensis (cropped).jpg, '' Procuhy nazariensis'', of the early Permian of Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ... References Dvinosaurs Amphibian families {{Temnospondyli-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
