Peltostega Temporal range: Early Triassic ~ | |
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Scientific classification | |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Amphibia |
Order: | † Temnospondyli |
Suborder: | † Stereospondyli |
Genus: | † Peltostega Wiman, 1916 |
Species: | †P. erici |
Binomial name | |
†Peltostega erici Wiman, 1916 | |
Peltostega is an extinct genus of prehistoric trematosaurians. The type is the only known species, Peltostega erici It is known from the Early Triassic Kongressfjellet Formation of Svalbard and Jan Mayen. [1]
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 advantageous for terrestrial locomotion, but the purpose of the fusion of successive spines remained unclear in the absence of other material of this taxon.
Erpetosaurus is an extinct genus of dvinosaurian temnospondyl within the family Eobrachyopidae. Erpetosaurus is only known from the Upper Freeport Coal, Allegheny Group, Middle Pennsylvanian of Linton, Ohio, USA. Some unique features of the temnospondlys are that they have a single fang on each premaxilla on the anterior maxilla for the reception of two dentary fangs; and an elongate, tube-like backside extension of the parasphenoid, both hinting to an aquatic hunting lifestyle.
Eoscopus is an extinct genus of dissorophoidean euskelian temnospondyl in the family Micropholidae. It is known from Hamilton Quarry, a Late Carboniferous lagerstätte near Hamilton, Kansas.
Derwentia is an extinct genus of trematosaurian temnospondyl within the family Rhytidosteidae. It is known from a single skull found from the Knocklofty Sandstone of Tasmania, which is Early Triassic in age.
Notobrachyops is a genus of brachyopid temnospondyl amphibian. It is known from a skull roof impression found in the Ashfield Shale of Mortdale, New South Wales, Australia. The Ashfield Shale has also yielded a shark species, a lungfish species, six species of paleoniscid fish, a species of holostean fish, a subholostean fish, and the labyrinthodont amphibian Paracyclotosaurus davidi.
Nannospondylus is an extinct genus of dvinosaurian temnospondyl within the family Trimerorhachidae. It is known from the Chickasha Formation in Oklahoma.
Lafonius is an extinct genus dvinosaurian temnospondyl within the family Trimerorhachidae. It is known from Carboniferous of New Mexico.
Osteophorus is an extinct genus of eryopoidean temnospondyl within the family Eryopidae. It is only known from the Permian of Poland.
Xenotosuchus is an extinct genus of mastodonsaurid temnospondyl within the family Mastodonsauridae known from the Triassic of South Africa. The genus is based on a skull originally described as Parotosuchus, an animal which it resembled in general build and habit.
Mahavisaurus is an extinct genus of rhytidosteid temnospondyl from the early Triassic period of Iraro, Madagascar. It is known from the holotype MNHN MAE 3037, a nearly complete skull, recovered from the Middle Sakamena Formation. This genus was named by J. P. Lehman in 1966, and the type species is Mahavisaurus dentatus.
Procochleosaurus is an extinct genus of cochleosaurid temnospondyl. Known from the Jarrow coal mines of Ireland, this genus is the oldest known member of the family Cochleosauridae. It was quite similar to Cochleosaurus, an early temnospondyl from the Czech Republic.
Platyrhinops is an extinct genus amphibamid temnospondyl from the Late Carboniferous of Ohio and the Czech Republic. It is known from many partial skeletons from the Linton site in Saline Township, Ohio and at least 6 partial specimens from the Nýřany site from the Nýřany Member of the Kladno Formation in the Czech Republic.
Plagiorophus is an extinct genus of prehistoric plagiosaurid. It is known from the Middle Triassic Bukobay Formation (Ladinian) and Donguz Formation (Anisian) of Russia.
Plagiobatrachus is an extinct genus of plagiosaurid temnospondyl. It is known from the Rewan Formation, an Early Triassic formation in Australia.
Tupilakosaurus is an extinct genus of dvinosaurian temnospondyl within the family Tupilakosauridae.
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.
Pleuroptyx is an extinct genus of prehistoric amphibian known from the Late Carboniferous (Pennsylvanian) of Ohio. The type species is Pleuroptyx clavatus.
Sinobrachyops placenticephalus is an extinct temnospondyl amphibian from Middle Jurassic-aged Shaximiao Formation in the Sichuan basin, China. S. placenticephalus is one of the youngest known labyrinthodont amphibians.
Syndyodosuchus is an extinct genus of temnospondyl within the family Actinodontidae. It is known from the Permian Inta Formation of European Russia.