Simosteus

Simosteus tuberculatus is a small arthrodire placoderm from the Gogo Formation of Western Australia. Unlike other members of the arthrodire family Camuropiscidae, S. tuberculatus had a short, snub-nose, as directly implied by the translation of its generic name, "snub-nosed bone." Although S. tuberculatus lacks the characteristic elongated nose, it shares other diagnostic features of camuropiscids, such as cheekplates sutured to the cranium.

Simosteus Temporal range: Frasnian
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Placodermi
Order:	Arthrodira
Family:	Camuropiscidae
Genus:	Simosteus
Species:	S. tuberculatus Miles & Dennis, 1982[1]

So far, the only specimen known is of an incomplete cranium.