About spinosaurus teeth
So, this just hit me. Most scientists believe that toothed dinosaurs would have generally had their teeth covered by lizard-like lips to prevent them from drying out.
Considering only phylogenetic bracketing, one would think they would have exposed teeth, since the closest living relatives of dinosaurs that still have teeth are crocodilians, but scientists believe that, as a rule, land animals have covered teeth, and crocodilians are an exception because they live in a largely aquatic environment.
So, T. Rex’s teeth would likely not have been visible when its mouth was closed... but what about spinosaurus?
The newest fossils for spinosaurus have revealed it to have a largely aquatic lifestile, even having a large paddle tail for swimming. Does this mean that Spinosaurus might have had exposed teeth like those of crocodiles?
