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Actinodon
''Actinodon'' is an extinct genus of eryopoidean temnospondyl within the family Eryopidae. History of study ''Actinodon'' was named in 1866 by French paleontologist Jean Albert Gaudry based on a holotype skull that was collected by Charles Frossard near Muse in the Autun Basin (early Permian) of France. The status and relationship of the taxon was long problematic because the holotype was thought to be lost, until it was rediscovered in the collections of the Museum d'Histoire Naturelle in 1996. In the intervening 130 years, a variety of specimens were described by other workers, some of which were attributed to other species or only to the genus level. Werneburg & Steyer (1999) were the most recent to redescribe material of this taxon, and they referred it to the eryopoid ''Onchiodon'' as a valid species, while Schoch & Milner (2000) argued that it might be a species of the stereospondylomorph ''Sclerocephalus'', but phylogenetic analyses have not recovered ''A. frossardi'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Actinodon Frossardi 1DB
''Actinodon'' is an extinct genus of eryopoidean temnospondyl within the family Eryopidae. History of study ''Actinodon'' was named in 1866 by French paleontologist Jean Albert Gaudry based on a holotype skull that was collected by Charles Frossard near Muse in the Autun Basin (early Permian) of France. The status and relationship of the taxon was long problematic because the holotype was thought to be lost, until it was rediscovered in the collections of the Museum d'Histoire Naturelle in 1996. In the intervening 130 years, a variety of specimens were described by other workers, some of which were attributed to other species or only to the genus level. Werneburg & Steyer (1999) were the most recent to redescribe material of this taxon, and they referred it to the eryopoid ''Onchiodon'' as a valid species, while Schoch & Milner (2000) argued that it might be a species of the stereospondylomorph ''Sclerocephalus'', but phylogenetic analyses have not recovered ''A. frossardi'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Actinodon Sp Juvenile
''Actinodon'' is an extinct genus of eryopoidean temnospondyl within the family Eryopidae. History of study ''Actinodon'' was named in 1866 by French paleontologist Jean Albert Gaudry based on a holotype skull that was collected by Charles Frossard near Muse in the Autun Basin (early Permian) of France. The status and relationship of the taxon was long problematic because the holotype was thought to be lost, until it was rediscovered in the collections of the Museum d'Histoire Naturelle in 1996. In the intervening 130 years, a variety of specimens were described by other workers, some of which were attributed to other species or only to the genus level. Werneburg & Steyer (1999) were the most recent to redescribe material of this taxon, and they referred it to the eryopoid ''Onchiodon'' as a valid species, while Schoch & Milner (2000) argued that it might be a species of the stereospondylomorph ''Sclerocephalus'', but phylogenetic analyses have not recovered ''A. frossardi'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cheliderpeton
''Cheliderpeton'' (often misspelled ''Chelyderpeton'') is an extinct genus of temnospondyl amphibian. It lived during the Early Permian in what is now Europe. Fossils have been found from the Ruprechtice horizon of the Intrasudetic Basin of Bohemia in the Czech Republic, as well as the Saar-Nahe Basin of southwestern Germany. ''Cheliderpeton'' had a 16 cm skull, and reached about 65 cm in length.http://www.angellis.net/Web/PDfiles/amphs.pdf The type species of ''Cheliderpeton'' is ''Chelidosaurus vranyi'', named in 1877 by the Czech (people), Czech paleontologist Antonin Fritsch and found from the Czech Republic. The preoccupied generic name, referring to the trunk armour of turtles, was first changed into ''Chelydosaurus'' in 1885 and finally into ''Cheliderpeton'' in 1887. A second species named ''C. latirostre'' was described in 1993 by J. A. Boy from Germany, after having been assigned to ''Archegosaurus''. It differs from the type in having a less extensive preor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eryopidae
Eryopidae were a group of medium to large amphibious temnospondyli, known from North America and Europe. They are defined as all eryopoids with interpterygoid vacuities (spaces in the interpterygoid bone) that are rounded at the front; and large external nares (Laurin and Steyer 2000). Not all of the genera previously included in the Eryopidae (Carroll 1988) are retained under the cladistic revisions. Gallery File:Eryops1DB.jpg, '' Eryops megacephalus'', of the late Carboniferous to early Permian of North America File:Onchiodon12DB.jpg, ''Onchiodon'', of the late Carboniferous to early Permian of Europe and North America File:Actinodon frossardi 1DB.jpg, '' Actinodon frossardi'', of the early Permian of France France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of Overseas France, overseas regions and territories in the Americas and the Atlantic Ocean, Atlantic, Pacific Ocean, Pac ... File:Clamorosaur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 amphibians—that flourished worldwide during the Carboniferous, Permian, and Triassic periods. A few species continued into the Jurassic and Cretaceous periods. Fossils have been found on every continent. During about 210 million years of evolutionary history, they adapted to a wide range of habitats, including freshwater, terrestrial, and even coastal marine environments. Their life history is well understood, with fossils known from the larval stage, metamorphosis, and maturity. Most temnospondyls were semiaquatic, although some were almost fully terrestrial, returning to the water only to breed. These temnospondyls were some of the first vertebrates fully adapted to life on land. Although temnospondyls are considered amphibians, many had cha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Onchiodon
''Onchiodon'' is an extinct genus of temnospondyl. It is primarily known from the Carboniferous and Permian The Permian ( ) is a geologic period and stratigraphic system which spans 47 million years from the end of the Carboniferous Period million years ago (Mya), to the beginning of the Triassic Period 251.9 Mya. It is the last period of the Paleoz ... of Europe, but also from the Permian of North America. It was an amphibious carnivore. A number of species have been described: References Eryopids Prehistoric amphibian genera Carboniferous temnospondyls of Europe Permian temnospondyls of Europe Permian temnospondyls of North America Fossil taxa described in 1861 {{Temnospondyli-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Early Permian
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Eryops
''Eryops'' (; from Greek , , 'drawn-out' + , , 'face', because most of its skull was in front of its eyes) is a genus of extinct, amphibious temnospondyls. It contains the single species , the fossils of which are found mainly in early Permian (about 295 million years ago) rocks of the Texas Red Beds, located in Archer County, Texas. Fossils have also been found in late Carboniferous period rocks from New Mexico. Several complete skeletons of ''Eryops'' have been found in lower Permian rocks, but skull bones and teeth are its most common fossils. Description ''Eryops'' averaged a little over long and could grow up to , making them among the largest land animals of their time. Adults weighed between . The skull was proportionately large, being broad and flat and reaching lengths of . It had an enormous mouth with many curved teeth like the frog. Its teeth had enamel with a folded pattern, leading to its early classification as a "labyrinthodont" ("maze toothed"). The sh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clamorosaurus
''Clamorosaurus'' is an extinct genus of temnospondyl amphibian Amphibians are tetrapod, four-limbed and ectothermic vertebrates of the Class (biology), class Amphibia. All living amphibians belong to the group Lissamphibia. They inhabit a wide variety of habitats, with most species living within terres .... Fossils of ''Clamorosaurus'' have been found in the Inta Formation (Vorkuta series) in Russia. They are dated to about 272.5 million years ago, which was during the Ufimian interval of the Permian. ''Clamorosaurus'' had a length of about 23 cm. (9 inches). The spaces in the interpterygoid bone of ''Clamorosaurus'' were rounded at the front. The external nares were large. Both of these characteristics are features of all members of Eryopidae.http://tech.groups.yahoo.com/group/seymouria/message/2359 References Permian temnospondyls Fossils of Russia Eryopids Prehistoric amphibian genera Fossil taxa described in 1983 {{temnospondyli-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glaukerpeton
''Eryops'' (; from Greek , , 'drawn-out' + , , 'face', because most of its skull was in front of its eyes) is a genus of extinct, amphibious temnospondyls. It contains the single species , the fossils of which are found mainly in early Permian (about 295 million years ago) rocks of the Texas Red Beds, located in Archer County, Texas. Fossils have also been found in late Carboniferous period rocks from New Mexico. Several complete skeletons of ''Eryops'' have been found in lower Permian rocks, but skull bones and teeth are its most common fossils. Description ''Eryops'' averaged a little over long and could grow up to , making them among the largest land animals of their time. Adults weighed between . The skull was proportionately large, being broad and flat and reaching lengths of . It had an enormous mouth with many curved teeth like the frog. Its teeth had enamel with a folded pattern, leading to its early classification as a " labyrinthodont" ("maze toothed"). Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Osteophorus
''Osteophorus'' is an extinct genus of eryopoidean temnospondyl within the family Eryopidae. It is only known from the Permian of Poland. 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 Eryopids Prehistoric amphibian genera Permian temnospondyls of Europe Fossil taxa described in 1856 Taxa named by Christian Erich Hermann von Meyer {{Permian-animal-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
