Ru*dis"tes (?), n. pl. [NL., fr. L.
rudis rough.] (Paleon.) An extinct order or
suborder of bivalve mollusks characteristic of the Cretaceous period;
-- called also Rudista. See Illust. under
Hippurite.
Ru*dis"tes (?), n. pl. [NL., fr. L.
rudis rough.] (Paleon.) An extinct order or
suborder of bivalve mollusks characteristic of the Cretaceous period;
-- called also Rudista. See Illust. under
Hippurite.