Stegocephali is a clade of vertebrate animals containing all fully limbed tetrapodomorphs. It is equivalent to a broad definition of the superclass Tetrapoda: under this broad definition, the term "tetrapod" applies to any animal descended from the first vertebrate with four limbs each with five digits in the extremity (pentadactyly), rather than fins of their sarcopterygian relatives.
Typical 19th-century depiction of a primitive stegocephalian, based on modern anurans and fossils now recognised as belonging to mastodonsaurids and Bromsgroveia