Definition of Pentamerus. Meaning of Pentamerus. Synonyms of Pentamerus
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Definition of Pentamerus
Pentamerus Pentamerus Pen*tam"e*rus, n. [NL. See Pentamerous.]
(Paleon.)
A genus of extinct Paleozoic brachiopods, often very abundant
in the Upper Silurian.
Pentamerus limestone (Geol.), a Silurian limestone composed
largely of the shells of Pentamerus.