How do you know if your TRex tooth is really from a TRex? There is 2 pieces of information you really need to positively identify a if a tooth is coming from TRex and that is Proximity and Morphology. Proximity is the location. In North America there are 5 pieces of Tyrannosaur and their teeth are very similar. They are found in different areas so you really need to know where a tooth is from to say it's TRex or another Tyrannosaur.
