1) Animal order 2) Order stegocephalia 
==History of classification== Originally, the term was used as a systematic unit at the rank of order. The term rose to prominence in American and British science in the 19th century, though the largely equivalent term Labyrinthodontia had been coined 18 years earlier by Hermann Burmeister in reference to the tooth structure. The terms were used i...
[n] - in former classifications a division of Amphibia comprising all pre-Jurassic and some later extinct large salamandriform amphibia
order Stegocephalia noun in former classifications a division of class Amphibia comprising all pre-Jurassic and some later extinct large salamandriform amphibia