Akademik

in former classifications a division of class Amphibia comprising all pre-Jurassic and some later extinct large salamandriform amphibia

in some especially former classifications : an order or other division of Amphibia comprising all the pre-Jurassic and many later extinct typically tailed and salamandriform amphibians usually with well-developed limbs and sometimes of large size — compare labyrinthodontia, lissamphibia

Stegocephalia /-se-fāˈli-ə/ plural noun

(Gr kephalē head) an extinct order of amphibians (Labyrinthodon, etc) having the skull protected by bony plates

Main Entry: ↑stegano-