Pteraspidomorpha - Pteraspidiformes

Alternative combination: Protaspis amplus

Synonyms: Protaspis nanus Bryant 1933, Protaspis perlatus Bryant 1933, Protaspis perryi Bryant 1933

Full reference: W. L. Bryant. 1933. The Fish Fauna of Beartooth Butte, Wyoming. Proceedings of the American Philosophical Society 72(5):285-314

Belongs to Oreaspis according to R. H. Denison 1970

See also Bryant 1933

Sister taxa: Oreaspis dunklei, Oreaspis williamsi

Type specimens:

• Oreaspis ampla: PU 13520, a partial skeleton (A dorsal shield in yellow limestone)
• Protaspis nanus: PU 13644, a partial skeleton (The front half of a small dorsal shield seen in visceral aspect).
• Protaspis perlatus: PU 13565, a partial skeleton (The left half of a dorsal shield seen from the visceral side and imbedded in yellow limestone).
• Protaspis perryi: PU 13518, a partial skeleton (A fragmentary dorsal shield in yellow limestone).

Distribution: found only at Beartooth Butte 2 (Devonian of Wyoming)

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Specimen images are retrieved through the ePANDDA API.