plural noun

Definition of Bunomastodontidae

in former classifications
: a family of extinct mastodons with trefoils or conelets of enamel in the valleys between the main crests of the molars that is now considered invalid because it is based on no type and is replaced in modern taxonomy by the family Gomphotheriidae

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History and Etymology for Bunomastodontidae

New Latin, from bun- (from Greek bounos) + -o- + mast- + -odont-, -odon + -idae

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