Merycoidodon
noun
Mer·yc·oi·do·don
Definition of Merycoidodon
: a genus (the type of the family Merycoidodontidae) of extinct, Oligocene, four-toed artiodactyls of the size of a peccary and the form of a swine that are regarded as probably archaic ruminants living in North America from the Eocene to the early Pliocene — see oreodont
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