This Bus-Sized Predator Hunted in Dinosaur-Era Rivers

Mosasaurs were enormous reptiles best known for ruling ancient oceans more than 66 million years ago, but new evidence suggests some also lived in rivers. Scientists reached this conclusion after analyzing a mosasaur tooth discovered in North Dakota. The tooth is thought to have come from an animal that may have grown up to 11 [...]

from SciTechDaily https://ift.tt/M9wjzye