Dorsal spine of Orthacanthus adamas (IMAGE)

Ohio State University

Dorsal spine of Orthacanthus adamas

Caption

Dorsal spine of Orthacanthus adamas from the Upper Freeport Coal (Carboniferous) of Linton, Ohio.  The spine is about 71 mm long.

Credit

Modified from Babcock (2024), after Newberry (1875).

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