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单词 Mesotherium
释义

Mesotherium

英语百科

Mesotherium

Mesotherium ("Middle Beast"), better known by its synonym, "Typotherium," is the type genus of Mesotheriidae, a long-lasting (roughly from 55 to 2 mya) family of superficially rodent-like, burrowing notoungulates from South America. It was first named by Étienne Serres in 1867, and through further finds now contains four species, M. cristatum, M. hystatum, M. maendrum, and M. pachygnathum.

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