Jawbones of a rare mosasaur with rounded teeth were discovered in Texas, pointing to how much these large lizards evolved before their extinction.
Rare fossils of the mosasaur Globidens alabamaensis — a 20 foot predator with strange, mushroom-shaped teeth — unearthed in ...
It’s a Paleozoic party! We’re throwing it back 530 million years.When the Earth woke up from an ice age, the Paleozoic Era ...