| placoderm | (n) fish-like vertebrate with bony plates on head and upper body; dominant in seas and rivers during the Devonian; considered the earliest vertebrate with jaws |
| placodermi | (n) extinct group of bony-plated fishes with primitive jaws, Syn. class Placodermi |
| Placoderm | n. [ Gr. |
| Placodermal | a. (Paleon.) Of or pertaining to the placoderms; like the placoderms. [ 1913 Webster ] |
| Placodermata | ‖n. pl. [ NL. ] (Paleon.) Same as Placodermi. [ 1913 Webster ] |
| Placodermi | ‖n. pl. [ NL., fr. Gr. |
| 板皮魚類 | [ばんぴぎょるい, banpigyorui] (n) placoderms (extinct fishes of class Placodermi) [Add to Longdo] |
| 板皮類 | [ばんぴるい, banpirui] (n) placoderms (extinct fishes of class Placodermi) [Add to Longdo] |