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Macroleter
''Macroleter'' is an extinct genus of nycteroleterid parareptile which existed in Oklahoma and Russia during the upper Permian period. It was a quite generalized primitive reptile, in many ways resembling their amphibian ancestors. It was first named by paleontologists Tverdochlebova and Ivachnenko in 1984. According to classification by Michel Laurin and Robert R. Reisz, the genus is a pararetile, belonging to the same branch as Millerettidae, Procolophonidae and other generalized anapsid reptiles. The type species is ''Macroleter poezicus'' from Upper Permian of Russia.
''Macroleter'' had an 8 cm skull, and an overall length of 75 cm. It was generally lizard-like in build with a rather flat and broad skull. The teeth were small and pointy, indication it predominately hunted insects and other small invertebrates.
''Seymouria agilis'' (Olson, 1980) that is known from only one specimen (holotype UCMP 143 277) was originally thought to be a reptile-like amphibian and assigned to the genus ''Seymouria''. The find consists of a nearly complete skeleton from the Chickasha Formation of Oklahoma. In 2001, the find was reassigned by Laurin and Reisz to ''Macroleter''.〔 ''Tokosaurus'', another pararetile thought to be closely related to ''Macroleter'', has also been reassigned to ''Macroleter'' and considered to be a juvenile of ''M. poezicus'' as they are known from the same locality.
==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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