Asterosteus

Asterosteus is a genus of rhenanid placoderm from the Eifelian. The type species, A. stenocephalus, is known from an incomplete skull from Middle Devonian strata in Ohio. What may be a second species ("Asterosteus sp Schmidtt 1963") is described from fragments decorated with star-shaped tubercules from the Eifelian-aged Gebze beds of Turkey.^[1]

Asterosteus stenocephalus head shield cast.

Asterosteus Temporal range: Eifelian
Artist's reconstruction of A. stenocephalus
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	†Placodermi
Order:	Rhenanida
Family:	Asterosteidae
Genus:	Asterosteus
Type species
Asterosteus stenocephalus Newberry 1875
species
A. stenocephalus A. sp.