Stethacanthus – a prickly-finned shark

(ste-tha-can-thuss)

Model of Stethacanthus altonensis.
Image: Jon Augier
Source: Museum Victoria

Carboniferous

HOW BIG IT WAS

Stethacanthus relative size depiction as described below
Stethacanthus was about 70 cm long.

This odd-looking shark lived in shallow coastal waters 350 million years ago, feeding on fish, cephalopods and crustaceans. The purpose of the strangely-shaped fin and spiked forehead of Stethacanthus is uncertain – they may have played a role in courtship or as a visual threat.

WHERE IT WAS FOUND

Stethacanthus map

This fossil of Stethacanthus was discovered in the USA.

RELATED OBJECTS

Other objects from the Carboniferous

Giant invertebratesPederpesGoniatitesPentremites