\Hip"pu*rite\, n. [Gr. ? decked with a horse's tail;
"i`ppos horse + ? tail: cf. F. hippurite.] (Paleon.)
A fossil bivalve mollusk of the genus {Hippurites}, of many
species, having a conical, cup-shaped under valve, with a
flattish upper valve or lid. Hippurites are found only in the
Cretaceous rocks.