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Eusauropleura
''Eusauropleura'' is an extinct genus of gephyrostegid reptiliomorph from the Pennsylvanian (Late Carboniferous) of Linton, Ohio. The type species and only species, ''Eusauropleura digitata'', was first described by American paleontologist Edward Drinker Cope in 1868 as ''Sauropleura digitata''. In 1930, paleontologist Alfred Romer placed the species in the new genus ''Eusauropleura''. Romer considered ''S. digitata'' to be a reptile or a more primitive relative of reptiles, making it only distantly related to ''Sauropleura'', which is a lepospondyl amphibian.
''Eusauropleura'' is known from ribs and limb bones, but no skull is known. The holotype fossil is preserved in ventral view with a dense coating of small scales covering its underside. The arms and legs are nearly complete. It is similar in appearance to ''Gephyrostegus'' from the Czech Republic, with closely matching body proportions. Compared to ''Gephyrostegus'', ''Eusauropleura'' has a more weakly ossified pelvis. The hand has five fingers with a phalangeal count of 2, 3, 4, 5, 4, meaning there are 2 bones in the first finger, 3 in the second, 4 in the third, 5 in the fourth, and 4 in the fifth. Romer used the phalangeal count as evidence that ''E. digitata'' was distinct from ''Sauropleura'', since lepospondyls like ''Sauropleura'' only have four fingers on each hand.〔
==References==
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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