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The Diplocaulidae ("double cauls") is an extinct family of "nectridean" tetrapodomorphs that arose during the Late Carboniferous and died out in the Late Permian. [1] They are distinguished by the presence of strange, horn-like protrusions jutting out from the rear of their skulls; in some genera said protrusions gave their heads an almost boomerang-like outline.
Diplocaulus (meaning "double stalk") is an extinct genus of lepospondyl amphibians which lived from the Late Carboniferous to the Late Permian of North America and Africa. ...
A life restoration of Urocordylus, a urocordylid. Nectrideans are a diverse group of tetrapods, including the aquatic Urocordylidae, the presumably terrestrial Scincosauridae, and the bizarre horned members of Diplocaulidae (also known as Keraterpetonidae), which includes the "boomerang-headed" Diplocaulus, one of the most famous genera of prehistoric amphibians (in the traditional sense of ...
Batrachiderpeton is an extinct genus of nectridean tetrapodomorphs within the family Diplocaulidae; it was a basal member of the family. [1] The type species is B. reticulatum and was found in a coal field in Northumberland, England at a locality that also yields the remains of Anthracosaurus russelli. [3] A second species is also known: B ...
Keraterpeton is an extinct genus of "nectridean" tetrapodomorphs, previously included within the monotypic Keraterpedontidae family, [3] from the Carboniferous period of Europe (Czech Republic, England and Ireland) [4] and North America (United States); [5] [6] it is the oldest known member of the family Diplocaulidae.
Diploceraspis is a genus of diplocaulid nectrideans.It lived in North America during the Permian period. It closely resembles its relative, Diplocaulus.It generally sports the same features as Diplocaulus, though it was smaller, measuring over 46 cm. [1] Beerbower originally recognised two species, D. burkei and D. conemaughensis, but they are no longer regarded as being distinct from one ...
Diceratosaurus is an extinct genus of nectridean tetrapodomorphs within the family Diplocaulidae. Fossils of Diceratosaurus were first described by Edward Drinker Cope in 1874. [1] The species D. brevirostris is well known from Jefferson County, Ohio, with approximately 50 specimens having been collected from the Ohio Diamond Coal Mine.
Ductilodon is an extinct genus of nectridean tetrapodomorphs in the family Diplocaulidae. The type and only species Ductilodon pruitti was named in 1999 from the Early Permian of Kansas. Distinguishing features of Ductilodon include horns that project backward from the skull and an arched row of teeth on the palate.