Acanthopleurus

Acanthopleurus is an extinct genus of marine triplespine that lived in the seas over what is now Europe during the early Oligocene epoch.

It contains three species:

The former species A. brevis Rath, 1859 is now classified in its own genus, Cryptobalistes.
 * †A. collettei Tyler, 1980 - Oligocene of Glarus, Switzerland
 * †A. serratus Agassiz, 1844 - Oligocene of Glarus, Switzerland (type species)
 * †A. trispinosus Ciobanu, 1977 - Oligocene of Romania