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Fossils

Only hindlimb elements of Alnashetri are known so far, but, based on the dinosaur’s relationships, the tiny theropod probably looked something like this Alvarezsaurus.

Cretaceous Legs Give Away New Dinosaur

Slender limb bones found in Argentina give away a new species of tiny dinosaur

A reconstruction of an Einiosaurus skull in a ceratopsid gallery at the Natural History Museum of Los Angeles.

Lessons from Einiosaurus

New dinosaurs are always cause for excitement, but the real joy of paleontology is investigating dinosaur lives

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Peering Inside Dinosaur Skin

Dinosaur skin impressions aren’t as rare as you might think, but how they form is a mystery

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Tracking Dinosaurs With Ray Stanford

Amateur paleontologist Ray Stanford has a great talent for tracking Maryland’s Cretaceous dinosaurs

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Paleontologists Welcome Xenoceratops to the Ceratopsian Family Tree

Canadian researchers found the horned dinosaur hiding in storage

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Piecing Together Eolambia

Paleontologists uncover a new look for one of Cretaceous Utah’s most common dinosaurs, Eolambia

Mamenchisaurus, one of the longest-necked dinosaurs of all time, perfectly represents the bizarre nature of sauropods.

Did Sauropods Have Built-In Swamp Coolers?

Paleobiologists are still trying to figure out how large sauropods prevented themselves from overheating

In this restoration by Emiliano Troco, a Sauroniops feeds on a juvenile Spinosaurus. (And yes, all the dinosaurs in this image are fluffy.)

New Dinosaur Discovered – Named After the Demonic Sauron from Lord of the Rings

A bizarre skull fragment hints at a new species of giant predatory dinosaur from Morocco

Many Allosaurus bones have been found with fractures and other pathologies, but were any of these injuries caused by falls?

Following Dinosaur Falls

Dinosaurs undoubtedly slipped and fell. But did they leave any evidence of their mishaps in the fossil record?

Part of a multi-step sequence by which Tyrannosaurus could have beheaded Triceratops, based on research by Fowler et al.

Did Tyrannosaurus Ever Battle Triceratops?

We love to imagine Tyrannosaurus fighting Triceratops to the death, but did such battles ever happen?

Not only was Ornithomimus feathered, but the dinosaur’s fluffy coat changed as it aged.

Feathery Ostrich Mimics Enfluffle the Dinosaur Family Tree

A trio of feathered dinosaurs tests a longstanding hypothesis and hint that there may be more feathered dinosaur fossils than anyone ever expected

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The Bat-Winged Dinosaur That Never Was

Just when naturalists began to suspect that birds might be dinosaurs, one researcher put forward a truly strange idea of what early bird ancestors would have looked like

A second specimen of the troodontid Mei, preserved in a bird-like sleeping position.

How Did Dinosaurs Sleep?

A lovely little fossil shows how some dinosaurs said goodnight

Dilophosaurus, in a restoration based on an impression found at St. George, Utah. Art by Heather Kyoht Luterman

Dilophosaurus – An Early Jurassic Icon

Tracks made by a 20-foot predatory dinosaur have been found in rock from Connecticut to Arizona, but who made the tracks?

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The Awkwardness of Tyrant Teens

Adult T. rex had the most powerful bite of any creature to walk the earth, but they had to grow into that destructive power

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Sinking a Sauropod

Paleontologists are naming new dinosaurs every week, but some names are eventually sent to the scientific wastebasket

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Outlining Olorotitan

A new study reexamines the skeleton of Olorotitan, a lovely hadrosaur from Russia

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What’s Sexy to a Dinosaur?

Can paleontologists identify the influence of sexual selection in the fossil record?

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The Past Keeps Getting Cooler

As cartoonist Randall Munroe points out, feathers make dinosaurs cooler than ever

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The Mysterious Martharaptor

Utah paleontologists unveil Martharaptor, an enigmatic Cretaceous dinosaur

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