Acanthodes is an extinct genus of spiny shark.[1] Fossils have been found in Europe, North America, and Australia.

Compared with other spiny sharks, Acanthodes was relatively relatively large, at Template:Convert/cm long. The genus had no teeth[2], instead having tooth-like spikes on its gills. Because of this, it is presumed to have been a filter feeder, filtering plankton from the water.[3]

It also had fewer spines than many of its relatives. Each of the paired pectoral and pelvic fins had a spine, as did the single anal and dorsal fins, giving it a total of just six, less than half that of many other species.


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