Found 1 items, similar to rudista.
English → English (gcide) Definition: Rudista Rudistes \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. [1913 Webster]