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Thoatherium
''Thoatherium'' (meaning "active swift-beast") is an extinct genus of litoptern mammal from the early Miocene of 20 Ma. With a length of , the gazelle-like ''Thoatherium'' was the smallest representative of the order Litopterna. Judging from its long legs, it was a fast runner. ''Thoatherium'' had remarkably reduced toes; only one horse-like hoof remained. ''Thoatherium'' even lacked splint bones, which are remnants of the second and fourth toe found in modern horses. Judging from its generalised teeth, ''Thoatherium'' fed on soft leaves rather than on tough grasses. ==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Thoatherium」の詳細全文を読む
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