Simosteus

Simosteus Temporal range: Frasnian
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	†Placodermi
Order:	†Arthrodira
Suborder:	†Brachythoraci
Family:	†Camuropiscidae
Genus:	†Simosteus Dennis & Miles, 1982
Species:	†S. tuberculatus
Binomial name
†Simosteus tuberculatus Dennis & Miles, 1982

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.

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