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出典:Wikipedia
出典:『Wikipedia』 (2010/05/25 17:15 UTC 版)
Merycoides is an extinct genus of oreodont of the subfamily Merycoidodontinae endemic to North America during the Whitneyan stage of the Oligocene-Late Oligocene epochs (30.8—24.8 mya), existing for approximately 6 million years.
Merycoides