Diplacanthidae

plural noun
Dip·​la·​can·​thi·​dae | \ ˌdipləˈkan(t)thəˌdē\

Definition of Diplacanthidae

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

History and Etymology for Diplacanthidae

New Latin, from Diplacanthus, type genus + -idae

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