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Placerias
''Placerias'' (meaning ''broad body'')〔(【引用サイトリンク】title=Page on Placerias )〕 is an extinct genus of dicynodonts that lived during the late Carnian age of the Triassic Period (221-210 million years ago). ''Placerias'' belongs to a group of dicynodonts called Kannemeyeriiformes, which was the last known group of dicynodonts before most of dicynodonts went extinct at the end of the Triassic.
==Description==
''Placerias'' was one of the largest herbivores in the Late Triassic, measuring up to long and weighing up to a tonne (1000 kilograms). with a powerful neck, strong legs, and a barrel-shaped body. There are possible ecological and evolutionary parallels with the modern hippopotamus, spending much of its time during the wet season wallowing in the water, chewing at bankside vegetation. Remaining in the water would also have given ''Placerias'' some protection against land-based predators such as ''Postosuchus''. ''Placerias'' used its beak to slice through thick branches and roots with two short tusks that could be used for defence and for intra-specific display. ''Placerias'' was closely related to ''Ischigualastia'' and similar in appearance.
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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