Hyracotherium

noun

Hy·​ra·​co·​the·​ri·​um

: a genus of lower Eocene perissodactylous mammals about the size of a fox having four-toed forelimbs and three-toed hind limbs and regarded as among the earliest ancestors of the modern horse

Word History

Etymology

New Latin Hyrac-, Hyrax + -o- + -therium

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