A genus of huge fossil amphibians, of this Triassic duration, having bony plates in the underneath side of the body. It is the kind of your order Labyrinthodonta. Called also Mastodonsaurus.
the standard genus of Labyrintho- dontidæ, containing specific fossil amphibians whoever teeth have the enamel folded and sunk inward consequently they are labyrinthine in construction, whence the name.
A member of this genus Labyrinthodon or order Labyrin-thodontia; any labyrinthodont.