Paleontology

The two species belong to the diverse subgroup Theropoda, which includes all of the flesh-eating dinosaurs.

The fossils date from the late Triassic Period (about 210 to 201 million years ago), meaning they represent one of the earliest known pterosaurs.

Does the foot-long fragment come from a mammoth or a mastodon?

"I was immediately excited, it was just perfect, and I knew it was an important find that needed to be shared with people."

The dinosaur lived around 174 million years ago.

The animal measured between 13 feet to 16 feet long and stood 3-and-a-half feet tall at the hips.

The dinosaur stood over 14 feet tall and weighed up to 10 tons.

This supports the theory that some bird-like predatory dinosaurs traveled in groups.

The dinosaur lived around 85 million years ago.

The finding fills in the gap between volcanic eruptions and marine extinctions that had been bugging scientists.

The findings could help to shine a light on the evolutionary history of mammals.

The extinct big cat resembled some species you might see in a zoo today, sharing some features with lithe African cheetahs and others with larger, more muscular cats like jaguars and leopards.

This is the oldest documented evidence for dandruff.

Its wingspan might have been substantial but paleontologists aren't certain it could fly.

The fossil is from one of the most successful species to have lived on Earth.

Scientists now believe humans stalked and then confronted a giant ground sloth thousands of years ago in New Mexico.

Early dinosaurs were at the mercy of weather patterns unfolding across the supercontinent Pangaea.

"This is a one in 100 million specimen," a University of Kansas fossil expert said.

This was when dinosaurs were just starting to evolve.

Rot happens.

They may not have been the most impressive flyers, but it got the job done.

This is the first time Candelarhynchus padillai has ever been seen in tropical South America.

This is the most complete dinosaur ever discovered from the end of the age of dinosaurs in Egypt.

This makes 11 total Archaeopteryx specimens.

This is the oldest example of iridescence in a dinosaur.

80-million-year-old teeth rewrite what we know about shark evolution.

New findings about the planet's distant past deepen mysteries of evolution.

2017 was a fantastic year for dinosaur knowledge.

It's a mystery wrapped in an enigma, sprinkled with intrigue.

The ancient marine mammal could help explain when North and South America first joined.