Spinosaurus, giant claw Pteranodon It was the first dromaeosaur

It was the first dromaeosaur to be discovered and its name was later used for the family

and gastropod borings

Plant Fossils of West Virginia

and Wyoming

It had a jointed neck

Spinosaurus, giant claw Pteranodon It was the first dromaeosaurSpinosaurus probably had over 70 straight conical teeth that lacked serrations. They also varied greatly in size and length. Most of the teeth found are under 3 inches long without the root. However, a few teeth up to 12 inches long including the root have been found. Spinosaurus was the biggest of all the carnivorous dinosaurs, larger than Tyrannosaurus and Giganotosaurus. It lived during part of the Cretaceous period, about 112 million to 97 million