Stegocephalia
plural noun
Stego·ce·pha·lia
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
Word History
Etymology
New Latin, from steg- + Greek kephalē head + New Latin -ia