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Webster 1913 Edition
Rudistes
Ru-dis′tes
(rṳ-dĭs′tēz)
, Noun.
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
.