Physogaleus is an extinct genus of small requiem shark[4] that lived from the Late Paleocene[3] to Miocene epochs.

The teeth similar to those of the modern Tiger shark, but are smaller, with a more central cusp that projects farther from the base of the tooth.

The species of Physogaleus were originally described as belonging to the same genus as the modern Tiger shark, Galeocerdo.

[7] Physogaleus teeth reach a maximum size that is smaller than that of true tiger sharks, and they lack the heavy serrations typical of Galeocerdo.

This indicates individuals of Physogaleus probably had a diet of bony fish, similar to the living sand-tiger shark.