Semionotidae

plural noun

Sem·​i·​o·​noti·​dae

-ˈnät-

: a family of extinct Triassic ganoid fishes from America, Europe, and Africa that have a deep body, small mouth with teeth adapted chiefly to grinding or crushing, and rhomboid scales and that are often considered ancestral to the present-day freshwater gars

Word History

Etymology

New Latin, from Semionotus, type genus + -idae

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