1. in former classifications a division of class Amphibia comprising all pre-Jurassic and some later extinct large salamandriform amphibia; [syn: Stegocephalia, order Stegocephalia]
WordNet (r) 3.0 (2006):
order Stegocephalia
n 1: in former classifications a division of class Amphibia
comprising all pre-Jurassic and some later extinct large
salamandriform amphibia [syn: Stegocephalia, order
Stegocephalia]