Plac`o*der"mi (?), n. pl. [NL., fr. Gr. , , a tablet + skin.] Paleon.
An extinct group of fishes, supposed to be ganoids. The body and head were covered with large bony plates. See Illust. under Pterichthys, and Coccosteus.
© Webster 1913.
Log in or register to write something here or to contact authors.
Need help? email@example.com