Mosasaurus Jaw in Matrix

Mosasaurus Jaw in MatrixA well preserved Mosasaurus jaw with two rooted teeth not attached to the jaw, embedded in its original matrix. It has been expertly stabilized for preservation. No repair or restoration. Mosasaurs, part of the family Mosasauridae, were the top ocean predators during the Late Cretaceous, around 6670 million years ago. Think of them as giant, sea dwelling lizards with powerful jaws and paddle like limbs. The genus Mosasaurus, the namesake of the group,

Otodus auriculatus teeth are easily identified by their broad triangular crowns

which often resembles the rays of the sun

and Supersaurus

This stunning golden-beige Chubutensis tooth from Lee Creek features glossy enamel and sharp

it is distinguished by its distinctive ear-like lateral cusplets flanking the main blade

but had not yet developed serrations or the fully optimized cutting edges seen in later species

They originate from the early solar system

it was the result of several advantages working together:

approximately 100 million years ago

Triceratops (Triceratops horridus)        Discovered in the Lance Formation in Weston County

Diet and Extinction: As herbivores

Only a few hundred Lunar meteorites have ever been confirmed in history