A newly described species of mosasaur, an extinct marine reptile, swam through Cretaceous seas 80 million years ago and had a slender snout like a crocodile's.
The largest triceratops in the world, scheduled to be auctioned on Oct. 21, will be on display to the public in Paris beginning Sept. 16.
A pterosaur "dragon" that lived in Australia during the Cretaceous was the continent's biggest flying reptile, according to a new analysis of a fossil jawbone.
Paleontologists have revealed that a group of dinosaurs, known as alvarezsaurs, underwent a rapid reduction in size to adapt to widespread ecosystem changes.
A tiny amber-locked skull that looks like a bird's is actually a lizard's, new fossil evidence shows.
A newly discovered species of extinct ancient turtle uncovered in Madagascar is proof of convergent evolution of suction feeding in turtles.
New simulations calculated T. rex speed from the motion of its swaying tail, finding that the massive dinosaur was a mighty slow walker.
Mosasaurus was one of the largest members of the mosasaur family, which were the top predators in the oceans during the age of dinosaurs.
Around 120 million years ago, tarantulas first appeared on the Gondwana supercontinent in what is now the Americas, and then dispersed into Africa, Australia and India.
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