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Fossils

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Stomach Contents Preserve Sinocalliopteryx Snacks

Rare stomach contents reveal the last meals of two fluffy dinosaur predators

Despite being famous for its size, Spinosaurus is mostly known from fragments such as this bit of upper jaw. We don’t really know how large this carnivore was.

Catching a Dinosaur by the Tail

We love to debate dinosaur size, but a lack of tails complicates our attempts to find out who the biggest dinosaurs of all were

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Who Doesn’t Love Fuzzy Dinosaurs?

Feathered dinosaurs are awesome. Why do so many people hate them?

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Bicentenaria and the Rise of the Coelurosaurs

Paleontologists describe a new dinosaur that yields clues about how one of the most spectacular groups of theropods got their start

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Tracking Raptors

At an Early Cretaceous site in China, paleontologists have discovered a rich trove of raptor tracks

A Triceratops at the Natural History Museum of Los Angeles.

Huge Triceratops Uncovered in Alberta

Paleontologists in Canada have just uncovered a rare, especially big Triceratops skeleton

The nodosaur Animantarx. While this dinosaur is from Utah, it represents the sort of dinosaur that made the track found at the Maryland NASA campus.

NASA’s Nodosaur Track

Over 110 million years ago, dinosaurs roamed where a major NASA facility now sits

A pair of Stegoceras on display at the Royal Tyrrell Museum, Alberta, Canada.

How Domed Dinosaurs Grew Up

Dome-headed dinosaurs dramatically reshaped their skulls. How does this affect how we count dinosaur species?

Soft tissue traces of the ankylosaur Tarchia. Black asterisks denote large osteoderms, scale impressions are pointed out by an arrowhead and small ossicles are identified by the arrow.

An In-Depth Look at Ankylosaur Armor

An exceptional ankylosaur preserves the position of ancient armor

The skulls and necks of Majungasaurus (top) and Carnotaurus (bottom) compared.

Carnotaurus Had a Hefty Neck

Could the hefty neck of Carnotaurus explain why this dinosaur had puny arms?

Banjo’s reconstructed hand, with the thumb claw on top

Banjo Gets a Hand

Recently-discovered fossils fill out the arms of one of Australia’s formidable predatory dinosaurs

The AMNH skeleton of Styracosaurus, one of the dinosaurs from the upper zone of the Dinosaur Park Formation.

Dinosaur Turnover

Canada’s Dinosaur Park Formation is an exceptionally rich fossil boneyard, but what drove the evolution of the different dinosaurs found there?

A speculative restoration of the armored sauropod Agustinia

Armor for Sauropods

Will we ever find out what Augustinia looked like?

The skull of Oviraptor. This fossil was found with fossil eggs, indicating that this parent was brooding over a nest.

Baby Dinosaur Mystery

The dinosaur paleontologists named Oviraptor, “egg thief,” ironically turned out to be a caring mother

The head of Diplodocus, on a reconstruction at the Utah Field House of Natural History.

How Did Diplodocus Eat?

Huge dinosaurs like Diplodocus couldn’t chew, so how did they eat?

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Will We Ever Find All the Dinosaurs?

There are probably hundreds of dinosaurs that paleontologists have yet to discover, but will we ever find all the dinosaurs?

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On the Trail of a Weird Dinosaur

A rare footprint places a strange group of dinosaurs in Cretaceous Alaska

The skeleton of Sciurumimus, seen under UV light. You can see traces of protofeathers alon the dinosaur’s tail.

Did All Dinosaurs Have Feathers?

A newly-discovered fossil raises the possibility that all dinosaur lineages were fuzzy

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A Sneak Peek at a New Dinosaur

Argentina unveils a new dinosaur to celebrate the country’s bicentennial

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Will We Ever Find Dinosaurs Caught in the Act?

Is there any chance that paleontologists will one day find mating dinosaurs?

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