Spinosaurus Dinosaur Tooth Specimen B

Approximately 4" in length  112 million to 97 million years old Spinosaurus (meaning "spine lizard") 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 years ago and was in the Movie Jurassic Park 3. (He's a movie star!) Spinosaurus was ready for Hollywood before it was cool. Recent fossil evidence shows Spinosaurus was the first dinosaur that was able to swim, and likely spent most of its life in the water. They are thought to have survived primarily on fish, including giant coelacanths, sawfish, large lungfish and sharks, which lived in the dinosaur's river system. It's long pointed teeth were perfect for snatching up a slippery water dwelling creature with very little chance of escape. Very few Spinosaurus fossils have been discovered, and no complete remains have been found. Very few Spinosaurus fossils have been discovered, and no complete remains have been f