2.5" Mosasaur Vertebrae - North Sulfur River, Texas

This is a 2.5" wide, vertebrae of a Mosasaur from the North Sulfur River in Texas. There are several types of Mosasaur's known from this formation, so identifying an individual vertebrae down to a genus or species is difficult. There are multiple repaired cracks through this vertebrae.

Mosasaurs are a family of enormous, extinct, marine reptiles that ruled the seas for 25 million years during the Cretaceous period. Some species including the Mosasaurus could reach lengths in excess of 50 feet and where the apex predator in nearly every part of the seas during their time.