Huge Mosasaur Tooth in Matrix druzy The frequent occurrence of specimens

The frequent occurrence of specimens in low-oxygen shale deposits points to an ability to tolerate dysoxic conditions

size: 22" x 14"

As formidable as the sperm whale was

A small schooling fish

serrata is perhaps the most popular and sought after of the Green River Formation fish fossils

Huge Mosasaur Tooth in Matrix druzy The frequent occurrence of specimensFantastic specimen for any collector! Mosasaur tooth approx. 2. 25" long x 1. 5" wide. Matrix approx. 4" x 3. 25" About 80 million years ago, there were large creatures that lived in the ocean called Mosasaurs. These "marine lizards" were powerful swimmers; air breathing predators that once dominated the seas. Mosasaurs are considered one of the Great Marine Reptiles that ruled the oceans during the Cretaceous period. Luckily for us, all Great Marine