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An artist's interpretation of the species Ornithomimus (not the ornithomimosaurs in the new study) based on a fossil specimen with preserved tail feathers and soft tissue.

Giant, ostrich-like dinosaur and its smaller cousin roamed Mississippi during the late Cretaceous

By Laura Geggel published

A giant, ostrich-like dinosaur and its smaller cousin, also an ornithomimosaur, sprinted through what is now Mississippi about 85 million years ago.

Dinosaurs
Here we see Tyrannosaurus rex giving a vicious roar in front of trees.

Why did T. rex have such tiny arms?

By JoAnna Wendel published

Tyrannosaurus rex and many of its theropod cousins had large bodies but tiny arms. What gives?

Dinosaurs
The pterodactyl and pteranodon were massive flying predators

Pterodactyl: Facts about pteranodon and other pterosaurs

By Joseph Castro last updated

Reference Pterodactyls soared in the skies during the age of the dinosaurs and include some of the largest flying reptiles ever.

Reference
on the far left is a three-panel illustration of a dinosaur carcass being partially eaten, then dried out and buried in a fossilization process that would result in a dinosaur mummy with preserved skin. Part of an actual dinosaur mummy is shown on the right side.

Astonishing dinosaur mummy has 'glittering' skin that was punctured and ripped by ancient crocs

By Nicoletta Lanese last updated

Scientists uncovered a previously unknown way that dinosaur mummies form.

Dinosaurs
An illustration of an asteroid streaking toward Earth. The asteroid that hit Earth about 66 million years ago triggered a tsunami with mile-high waves.

Tsunami from dinosaur-killing asteroid had mile-high waves and reached halfway across the world

By Laura Geggel published

The dinosaur-killing asteroid triggered mile-high monster waves and waters that reached the world over.

Dinosaurs
A Tyrannosaurus rex specimen, nicknamed Shen for now, is the first T. rex to hit the auction block in Asia.

Spectacular T. rex skeleton may fetch $25 million at auction (the new owner gets to name it, too)

By Laura Geggel published

Paleontologists are unhappy that a T. rex specimen from Montana is hitting the auction block in Hong Kong in November.

Dinosaurs
Scientists think the eggs belong to a new species.

Crystal-stuffed dinosaur eggs the size of cannonballs discovered in China

By Ben Turner published

East China’s volcanic terrain is ideal for fossil hunters, who discovered the unusual eggs

Dinosaurs
During the recent excavation at the Monte Agudo paleontological site in Pombal, Portugal, scientists extracted part of the fossilized skeleton of a large sauropod dinosaur.

Ginormous Jurassic fossil in Portugal may be the biggest dinosaur ever found in Europe

By Joanna Thompson published

While researchers have not yet identified the species of an enormous newfound dinosaur, the sauropod is already breaking size records.

Dinosaurs
A close-up image of intact skin on the ankle bones of a hadrosaur fossil.

Rare fossils reveal basketball-like skin on duck-billed dinosaur

By Jennifer Nalewicki published

The juvenile hadrosaur is impeccably well preserved.

Dinosaurs
Mbiresaurus raathi in shallow water with other Triassic animals nearby

Oldest African dinosaur ever found unearthed in Zimbabwe

By Joanna Thompson last updated

Meet Mbiresaurus raathi, the oldest African dinosaur (and one of the world's earliest) whose neighbors lived in Brazil.

Dinosaurs
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