Cenozoic fish of North America

Heliobatis is an extinct genus of stingray in the Myliobatiformes family Dasyatidae. At present the genus contains the single species Heliobatis radians.

thumb|right|upright|Cockerellites|Cockerellites liops

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