Diplacanthidae

plural noun

Dip·​la·​can·​thi·​dae

ˌdipləˈkan(t)thəˌdē

: a family of primitive placoderm fishes (subclass Acanthodii) having two dorsal fins see diplacanthus

Word History

Etymology

New Latin, from Diplacanthus, type genus + -idae

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