Do you really want to send Webster 1913 a message saying you like their work?
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.
© Webster 1913.
Log in or register to write something here or to contact authors.