placodermi
Plac`o*der"mi, n. pl. Etym: [NL., fr. Gr. (Paleon.) Defn: 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.
Plac`o*der"mi, n. pl. Etym: [NL., fr. Gr. (Paleon.) Defn: 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.