Tag Archive for 'Pierre Shale Formation'

Reconstruction of a mosasaur and large fish preying on an injured Enchoteuthis, representing potential candidates for the bite marks on the octopod. Image credit: Kaitlin Lindblad.

Fossil of Giant Squid-Like Creature from Cretaceous Period Bears Marks of Deadly Attack

Sep 1, 2026 by Enrico de Lazaro

Paleontologists studying a fossil unearthed in southern Manitoba, Canada, have identified what they believe are two bite marks on the internal skeleton...

Reconstruction of Jormungandr walhallaensis shown engaging in intraspecific combat. Image credit: Henry Sharpe.

New Mosasaur Species Unearthed in North Dakota

Oct 31, 2023 by Enrico de Lazaro

A new genus and species of mosasaur being named Jormungandr walhallaensis has been discovered by American Museum of Natural History Ph.D. student Amelia...