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Dissorophids
Dissorophidae is an extinct family of medium-sized, temnospondyl amphibians that flourished during the late Carboniferous and early Permian periods. The clade is known almost exclusively from North America. History of study Dissorophidae is a diverse clade that was named in 1902 by George A. Boulenger. Junior synonyms include Otocoelidae, Stegopidae, and Aspidosauridae. Early in the study of dissorophoids when the relationships of different taxa were not well-resolved and most taxa had not been described, Dissorophidae sometimes came to include taxa that are now not regarded as dissorophids and may have excluded earlier described taxa that are now regarded as dissorophids. Amphibamiforms were widely regarded as small-bodied dissorophids, and at one point, Dissorophidae was also suggested to also include Trematopidae. 19th century In 1895, American paleontologist Edward Drinker Cope named ''Dissorophus'' from the early Permian of Texas. This was the first dissorophid to be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kamacops
''Kamacops'' is a genus of dissorophid temnospondyls known from the Middle to Late Permian of Russia that was described by Yuri Gubin in 1980. It is known from a single species, ''Kamacops acervalis,'' material of which is currently reposited in the Paleontological Institute of the Russian Academy of Sciences. ''Kamacops'' is one of the youngest dissorophids, along with '' Iratusaurus'' and '' Zygosaurus'' from Russia and ''Anakamacops'' from China and was one of the largest known dissorophids, with an estimated skull length of 24–30 cm. It is typically recovered as being most closely related to ''Zygosaurus'' and to the North American ''Cacops ''Cacops'' ("ugly look" for its strange appearance), is a genus of dissorophid temnospondyls from the Kungurian stage of the early Permian of the United States. ''Cacops'' is one of the few olsoniforms (dissorophids and the larger trematopids) ...''''.'' A detailed study of the braincase region was performed by Schoch (1999), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aspidosaurus
''Aspidosaurus'' is an extinct genus of dissorophoid temnospondyl within the family Dissorophidae. Description Like other dissorophids, ''Aspidosaurus'' species had a single row of plates formed by expansions of the neural spines.A Description of ''Aspidosaurus novomexicanus'' Williston Permo-Carboniferous Vertebrates from New Mexico, p7-11. Retrieved 2011-09-11. Taxonomy In 1911, Paul Miller discovered the remains of various dissorophid bones in that were attributed to a new species, ''Aspidosaurus novomexicanus''. The skull closely resembled that of a specimen of '' |
Cacops Aspidephorus
''Cacops'' ("ugly look" for its strange appearance), is a genus of dissorophid temnospondyls from the Kungurian stage of the early Permian of the United States. ''Cacops'' is one of the few olsoniforms (dissorophids and the larger trematopids) whose ontogeny is known. ''Cacops'' fossils were almost exclusively known from the Cacops Bone Bed of the Lower Permian Arroyo Formation of Texas for much of the 20th century. New material collected from the Dolese Brothers Quarry, near Richards Spur, Oklahoma in the past few decades has been recovered, painting a clearer picture of what the animal looked and acted like. History of discovery ''Cacops aspidephorus'' is the most famous dissorophid, in part due to a majority of its skeleton having been known for over a century. Over 50 specimens have been found in the ''Cacops'' Bone Bed in Baylor County, Texas, which is now flooded by the dammed Lake Kemp. However, many of the specimens are covered in calcite, which penetrates the bone tis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dissorophus
''Dissorophus'' (DI-soh-ROH-fus) (meaning "double roof" for two layers of armor) is an extinct genus of temnospondyl amphibian that lived during the Early Permian Period about 273 million years ago. Its fossils have been found in Texas and in Oklahoma in North America. Its heavy armor and robust build indicate ''Dissorophus'' was active on land, similar to other members of the clade Dissorophidae that are known from the Late Carboniferous to the Early Permian periods. ''Dissorphus'' is distinguished by its small body size, disproportionately large head and short trunk. The American paleontologist Edward Drinker Cope first briefly described ''Dissorophus'' in 1895,Cope. E.D. 1895. A batrachian armadillo. ''American Naturalist'' 29:99/ref> likely deriving the genus name from Ancient Greek δισσός/dissos "double" and ὀροφή/orophe "roof" to refer to the double layer of armor formed by horizontal "spinous branches" at the top of the neural spines of the vertebrae that "tou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Platyhystrix
''Platyhystrix'' (from el, πλατύς , 'flat' and el, ῠ̔́στρῐξ , 'porcupine') was a temnospondyl amphibian with a distinctive sail along its back, similar to the unrelated synapsids, ''Dimetrodon'' and ''Edaphosaurus''. It lived during the boundary between the latest Carboniferous and earliest Permian periods in Red Beds of Texas and Oklahoma, Texas, about 300 million years ago. Palaeobiology ''Platyhystrix'' may have been preyed upon by larger temnospondyls such as ''Eryops'', or by larger carnivorous reptiles, which were becoming more common and diverse in the drier climate of the Permian. The skull was large and strongly built, with a frog-like face. ''Platyhystrix'' had a compact body, reaching long including the tail, and its short, sturdy legs indicate a mainly terrestrial life. ''Platyhystrix'' appeared rather unusual: the dorsal vertebrae were extraordinarily lengthened, and in life they probably formed a skin-covered sail. This structure was possibly for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Broiliellus
''Broiliellus'' is an extinct genus of dissorophoid temnospondyl within the family Dissorophidae. ''Broiliellus'' is most closely related to the genus ''Dissorophus'', and both have been placed in the subfamily Dissorophinae. ''Broiliellus'' is known from five species from the Early Permian: the type species is ''Broiliellus texensis,'' and the other species are ''Broiliellus brevis,'' ''Broiliellus olsoni, Broiliellus arroyoensis,'' and ''Broiliellus reiszi''. An additional species, ''Broiliellus novomexicanus'', which was originally named ''Aspidosaurus novomexicanus'', is now thought to fall outside the genus as a member of the subfamily Eucacopinae. History of study ''Broiliellus'' was first named by American paleontologist S.W. Williston in 1914 based on two nearly complete skulls in articulation with postcranial material from the early Permian of Texas; this species was given the name ''Broiliellus texensis'', the genus name being for the German paleontologist Ferdinand B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brevidorsum
''Brevidorsum'' is an extinct genus of dissorophoidean euskelian temnospondyl within the family Dissorophidae. 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 Dissorophids Cisuralian temnospondyls of North America Prehistoric amphibian genera {{temnospondyli-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Conjunctio Multidens
''Conjunctio'' is an extinct genus of dissorophid temnospondyl amphibian from the early Permian of New Mexico. The type species, ''Conjunctio multidens'', was named by paleontologist Robert L. Carroll in 1964. History of study The holotype specimen was found in 1911 in the Lower Permian Abo Formation in New Mexico ) , population_demonym = New Mexican ( es, Neomexicano, Neomejicano, Nuevo Mexicano) , seat = Santa Fe , LargestCity = Albuquerque , LargestMetro = Tiguex , OfficialLang = None , Languages = English, Spanish ( New Mexican), Navajo, Ker .... It consists of the skull and postcranial material including femora, humeri, scapulae, pelvis, a section of the vertebral column, and osteoderms. It was originally described by Case et al. (1913) as a referred specimen of ''Aspidosaurus'' (sometimes "''Broiliellus''") ''novomexicanus'' but was subsequently determined to be a distinct species by Carroll (1964). Carroll also identified a third specimen of ''Conjunctio'', ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fayella
''Fayella'' is an extinct genus of dubious temnospondyl from the Early Permian (Guadalupian) of Oklahoma. Taxonomy The holotype of ''Fayella chickashaensis'', FMNH UR 1004, comprises a brain case with part of basicraium, basipterygoid processes, and part of otic complex. It was found in the Chickasha Formation of Oklahoma. Olson (1972) referred a complete specimen (UCLA VP 3066) to ''Fayella'' based on cranial similarities. However, Gee et al. (2018) declared ''Fayella'' a ''nomen dubium'', assigning it to Temnospondyli indeterminate and coining '' Nooxobeia'' for UCLA VP 3066, which is definitely a dissorophid.Bryan M. Gee; Diane Scott; Robert R. Reisz (2018). "Reappraisal of the Permian dissorophid Fayella chickashaensis". Canadian Journal of Earth Sciences. 55 (10): 1103–1114. doi:10.1139/cjes-2018-0053. 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 t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astreptorhachis
''Astreptorhachis'' is an extinct genus of Late Carboniferous dissorophoid temnospondyl within the family Dissorophidae. It is known only from one species, ''Astreptorhachis ohioensis'', that was collected from Jefferson County, Ohio by the Ohio Geological Survey in 1953 and described by Peter Vaughn in 1971. The holotype and only known specimen consists of a few neural spines and is currently reposited in the Smithsonian Museum of Natural History. The genus name derives from the Greek words ''astreptos'' ("inflexible") and ''rhachis'' ("backbone"). The specimen was recognized as being similar to the dissorophid '' Platyhystrix rugosus'' from the southwestern United States in have greatly elongate neural spines. ''Astreptorhachis'' is differentiated from ''Platyhystrix'' by the fusion of successive neural spines and the extensively developed tubercles that cover the external surfaces. It is speculated that the elongation of the spines served to stiffen the backbone, being advantage ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iratusaurus
''Iratusaurus'' is an extinct genus of dissorophoid temnospondyl within the family Dissorophidae. It was described by Gubin (1980) on the basis of a fragmentary posterior skull. It is estimated to have been comparably large to ''Kamacops'', another Russian dissorophid, but little more can be said about it, and it is rarely mentioned in comparative descriptions and has never been tested in a phylogenetic analysis. Distinguishing features include a large, triangular otic notch and a median crest on the postparietals. See also * 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 Dissorophids Permian temnospondyls Fossils of Russia Prehistoric amphibian genera {{temnospondyli-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cacops
''Cacops'' ("ugly look" for its strange appearance), is a genus of dissorophid temnospondyls from the Kungurian stage of the early Permian of the United States. ''Cacops'' is one of the few olsoniforms (dissorophids and the larger trematopids) whose ontogeny is known. ''Cacops'' fossils were almost exclusively known from the Cacops Bone Bed of the Lower Permian Arroyo Formation of Texas for much of the 20th century. New material collected from the Dolese Brothers Quarry, near Richards Spur, Oklahoma in the past few decades has been recovered, painting a clearer picture of what the animal looked and acted like. History of discovery ''Cacops aspidephorus'' is the most famous dissorophid, in part due to a majority of its skeleton having been known for over a century. Over 50 specimens have been found in the ''Cacops'' Bone Bed in Baylor County, Texas, which is now flooded by the dammed Lake Kemp. However, many of the specimens are covered in calcite, which penetrates the bone tis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
