Are Labyrinthodontia Extinct?
Are Labyrinthodontia Extinct? Labyrinthodont is also an archaic name for any member of the subclass Labyrinthodontia, an extinct group that served as a precursor to the amphibians. Labyrinthodonts lived during Carboniferous and Permian times (about 359–251 million years ago) and may well have included the ancestors of all terrestrial vertebrates. Where does the labyrinthodont live?