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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. Diplocaulus is by far the largest and best-known of the lepospondyls, characterized by a distinctive boomerang -shaped skull .
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.
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Lepospondyli is a diverse taxon of early tetrapods.With the exception of one late-surviving lepospondyl from the Late Permian of Morocco (Diplocaulus minimus), [6] lepospondyls lived from the Visean stage of the Early Carboniferous to the Early Permian and were geographically restricted to what is now Europe and North America.
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 ...
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Holotype specimen of Tropeognathus mesembrinus (BSP 1987 I 46) in lateral (A1), palatal (A2), and anterior (A3) views. In the 1980s the German paleontology museum Bayerische Staatssammlung für Paläontologie und historische Geologie in Munich acquired a pterosaur skull from Brazilian fossil dealers that had probably been found in Ceará, in the geological group called the Santana Group, which ...
Dasyceps is the largest of the three zatracheidid genera, with a skull length approaching 30 cm. It is diagnosed by the following features: (1) proportionately long, U-shaped skull and elongate premaxillae; (2) relatively posteriorly situated nares; (3) dorsal exposure of septomaxilla replaced by nasal and maxilla, which contact posterior to the naris, excluding the lacrimal; (4) quadratojugal ...