Cretaceous Period

The body of a tiny chick in a piece of Burmese amber from the Cretaceous period was preserved in incredible detail.

Scientists recently found the most complete fossil to date of a type of bird from the Cretaceous, trapped in a piece of amber.

A newly identified, 130-million-year-old marine reptile was enormous, measuring the length of nearly three grand pianos lined up, but it wasn't a top marine predator, a new study finds.

Tyrannosaurus rex could gnash and chomp its teeth together with such force that it could easily pulverize the bones of its prey, a new study finds.

In 1992, a Chinese farmer discovered an extraordinary fossil: the embryo of a rare and giant bird-like dinosaur that lived 90 million years ago.

A 145-million-year-old dinosaur about the size of a wild turkey sported a plume of tail feathers that were surprisingly modern-looking and aerodynamic in shape, a new study finds.

Scientists recently found tiny beetles resembling horseshoe crabs trapped in amber dating back 99 million years.

The fearsome Tyrannosaurus rex didn't have lips if it looked anything like a newly discovered tyrannosaur species that scientists are calling the "frightful lizard."