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Evolution of Vertebrates
Other Mosasaur fossils have been found in the Phosphate mines of Khouribga
rather than a living anima
Chasmosaur tibia & fibula
Styxosaurus was an elasmosaur
Tyrannosaurus rex, tooth with serrations Troodon Evolution of VertebratesTyrannosaurs rex Tooth With Great Serrations The original tooth was found in the Hell Creek Formation of South Dakota and is 3. 5 inches long. Yes, T rex teeth were big and strong but they did break them while feeding and crushing the bones of other dinosaurs. These broken teeth are called shed teeth. Fortunately, when a tooth was broken or shed it was slowly replaced by another tooth growing out of the jaw. Its teeth were also serrated just like a
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