Sarcoprion

Sarcoprion (from the Ancient Greek, "flesh saw") is an extinct genus of eugeneodont holocephalan from the Permian of Greenland.

Similar to other helicoprionids such as Agassizodus and Helicoprion,[1] it possessed tooth whorls on the symphysis of the jaw as well as flattened, pavement-type teeth.

It is distinguished from other members of its family by the presence of sharp, symphyseal teeth on both the upper and lower jaws.

[2] The preserved material does not show evidence of a distinct upper jaw, implying it may have been fused to the cranium, reduced, or lost entirely.

The most complete known specimen consists only of a partial cranium and lower jaws.

Speculative life reconstruction based on the partial skull described by Nielsen (1952)
Reconstructed jaw and dentition of Sarcoprion (top right) alongside a whorl of the related Helicoprion bessonowi (left)