Platycarpus ictericus, mosasaur skull Oviraptor 51 x 34 x 6

51 x 34 x 6

sharp teeth

Thus T-rex had a variety of sizes of teeth

characterized by a particular denture formed by batteries of hundreds of small lozenge teeth for pulverizing the tough plant food

or "roof lizard" for it's large

Platycarpus ictericus, mosasaur skull Oviraptor 51 x 34 x 6Mosasaurs were a group of predatory marine reptiles that were very successful during the Late Cretaceous Period. The first mosasaur fossils were found in the 1770's in a mine in the Netherlands, more than 50 years before the first dinosaur bones were found. Mosasaurs were among the first fossils recognized and scientifically described. "Mosasaur" means "reptile of the Meuse," a river near the quarry where mosasaurs were first found. Mosasaurs were