Definition of Protohippus. Meaning of Protohippus. Synonyms of Protohippus
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Definition of Protohippus
Protohippus Protohippus Pro`to*hip"pus, n. [NL., from Gr. ? first + ?
horse.] (Paleon.)
A genus of fossil horses from the Lower Pliocene. They had
three toes on each foot, the lateral ones being small.