Cite
 

Meaning of heterostracan

het•er•os•tra•can

Pronunciation: (het"u-ros'tru-kun), [key]
— n. Paleontol.
  1. any of several ostracoderms of the order Heterostraci, from the Silurian and Devonian Periods, having the anterior part of the body enclosed in bony plates.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also: