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Specimens range between 33-40mm.

A shark tooth contains resistant calcium phosphate materials. Sharks continually shed their teeth, and some even shed approximately 35,000 teeth in a lifetime, as well as replace them by producing thousands of more. This fossil is approximately 155 million years old! Please note that the...

Mosasaurs were the largest aquatic lizards that ever evolved and attained lengths of almost 60 feet with a skull 6 foot long!  The mosasaur was a powerful swimmer who spent its entire life in the sea. Mosasaurs had long and powerful bodies whose tails and limbs were adapted for swimming...