Huge Mosasaur Tooth in Matrix druzy serrata is perhaps the most

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

Rancho La Brea has one of the world’s largest collections of fossil birds

A small schooling fish

Age: Pleistocene (<400k years)

Age: 100 MYO

Huge Mosasaur Tooth in Matrix druzy serrata is perhaps the mostFantastic 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