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Altenglanerpeton
''Altenglanerpeton'' is an extinct genus of microsaur amphibian from the Late Carboniferous or Early Permian of Germany. ''Altenglanerpeton'' was named in 2012 after the Altenglan Formation in which it was found. The type and only species is ''A.. schroederi''.
==Description==
''Altenglanerpeton'' is known from a single partial skeleton from an outcrop of the Altenglan Formation, which is part of the Saar–Nahe Basin. The Altenglan Formation dates back to the Carboniferous-Permian transition, about 299 million years ago. The skeleton was discovered sometime in the 1870s in the village of Werschweiler, and was first described by German paleontologist Eckart Schröder in 1939. Schröder tentatively assigned the specimen to the microsaur ''Microbrachis'', although its classification as a microsaur was questioned in later years.〔
The holotype skeleton includes a crushed skull preserved in dorsal or top view, and a straight length of vertebrae and associated ribs that are poorly preserved. The forelimbs and parts of the pectoral girdle are also preserved. The hind limbs and tail are missing. ''Altenglanerpeton'' has a robust skull with small, widely spaced eye sockets. The skull appears triangular from above as well as from the side, since it has a narrow and pointed snout. One distinguishing feature of ''Altenglanerpeton'' is the extension of the jugal bones far in front of the eye sockets. Unlike many other microsaurs, ''Altenglanerpeton'' lacks a network of lateral line grooves across its skull. ''Altenglanerpeton'' has an elongated body with around 30 simple spool-shaped vertebrae and small, poorly developed limbs. It is similar in appearance to the ostodolepids ''Micraroter'' and ''Pelodosotis'', both of which have long bodies and tiny limbs.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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