Tyrannosaur lips? Probably not...
Alphadino65
MemberTriceratopsJune 24, 20174796 Views2 RepliesA 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:
