Tyrannosaur lips? Probably not...
A recent theory that has abounded in paleontological communities since last year (mostly inspired by the research that went to into portraying T.rex in a new video game called Saurian) was that tyrannosaurs had lips that fully encased their teeth when they closed their mouths. The explanation was that their enamel-covered teeth needed to be coated in fluid constantly to prevent them from degrading.
However, some well preserved skull fossils from a new species of Daspletosaurus may have disproved the lip theory:
2 Replies
