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Temporal range: Eifelian
Asterosteus stenocephalus.jpg
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
  • A. stenocephalus
  • A. sp.

Asterosteus is genus of rhenanid placoderm from the Eifelian. The type species, A. stenocephalus, is known from an incomplete skull from Middle Devonian strata of 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]


  1. ^ Denison, Robert (1978). Handbook of Paleoichthyology, Volume 2, Placodermi. New York: Gustav Fischer Verlage. p. 25. ISBN 9780895740274.