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出典:Wikipedia
出典:『Wikipedia』 (2011/04/04 06:44 UTC 版)
Mesohippus (Greek: μεσο/meso meaning "middle" and ιππος/hippos meaning "horse") is an extinct genus of early horse. It lived some 40 to 30 million years ago from the late Eocene to the mid-Oligocene. Like many fossil horses, Mesohippus was common in North America.
名詞の変化形:
mesohippus