Ceratoastermorpha

Ceratoastermorpha are a superorder of Lagnodactyls tied together by shared characteristics, such as keratinous teeth and an advanced abdominal wall.

Ceratoasterformes
Lagnodactyls with cutting spikes in their mouths, left and right "jaw spikes" or "lateral mandibles" next to their mouths, fish-like tails with horizontal fins derived from their anal fingers, and a single pair of eyes.

Phyllomylosia
Benthic, typically tripodal lagnodactyls with keratinous spines in their mouths for grinding plant matter and a ring of eyes around their faces.