- Placodermi, class Placodermi - extinct group of bony-plated fishes with primitive jaws
--1 is a kind of class
--1 is a member of
--1 has members: placodermVertebrata, subphylum Vertebrata, Craniata, subphylum Craniata
Vertebrata, subphylum Vertebrata, Craniata, subphylum Craniata |