Acanthodes sp.

Acanthodes has few skull bones, no teeth, fins supported by spines, and a complete covering of very fine cuboidal scales. This image shows some of the jaw- and shoulder-associated bones, a pectoral fin spine, and the characteristic scales.

Reference:

• Zidek, J. 1980. Acanthodes lundi, new species (Acanthodii) and associated  coprolites from uppermost Mississippian Heath Formation of Central  Montana. Annals of Carnegie Museum 49: 49‑78.

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