Austroptyctodus gardineri is a small
ptyctodontid placoderm fish from the Upper Devonian
Gogo Formation of Western
Australia. First described by Miles & Young (1977) as a new species of the German genus
Ctenurella. Long (1997) redescribed the German material and found major differences in the skull roof pattern so assigned it to a new genus, Austroptyctodus.This genus lacks spinal plates and has
Ptyctodus-like toothplates.