This s an extinct genus of lamniform shark. It lived from the late Cretaceous to the late Eocene. Not much is known about these sharks. They probably had a varied diet of molluscs and fish.
References:
Ebersole JA, Cicimurri DJ, Harrell Jr. TL (2024) A new species of Palaeohypotodus Glückman, 1964 (Chondrichthyes, Lamniformes) from the lower Paleocene (Danian) Porters Creek Formation, Wilcox County, Alabama, USA. Fossil Record 27(1): 111-134. https://doi.org/10.3897/fr.27.112800\
