Stegocephalia
plural noun
Stego·ce·pha·lia
Definition of Stegocephalia
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
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Merriam-Webster unabridged
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