plural noun Bron·to·the·ri·idae \ˌbräntōthəˈrīəˌdē\

Definition of Brontotheriidae

  1. :  a large family of extinct Eocene and Oligocene mammals (order Perissodactyla) that were widely distributed in the northern hemisphere and included the titanotheres and a number of related animals

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Origin and Etymology of brontotheriidae

New Latin, from Brontotherium, type genus + -idae

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a brief usually trivial fact

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