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fossil

How to hide a dinosaur

Analysis of a finely preserved fossil dinosaur from China has revealed the animal’s erstwhile camouflage. It appears that the meter-high Early Cretaceous ceratopsid Psittacosaurus was light-colored on its underside and dark on top, a pattern known as countershading that may hint that the small herbivore lived in a dense forest environment.

 
11 Jan 2017

Tiniest pterosaur found in British Columbia

Pterosaurs have a gargantuan reputation: Most fossils of the flying reptiles have wingspans similar to a small plane. But the recent discovery of fragmentary fossils from an eagle-sized specimen in British Columbia shows that not all pterosaurs were huge.

19 Dec 2016

Extinct tiger had unique elbow, hunting style

During the Pleistocene, the marsupial lion, Thylacoleo carnifex, was one of Australia’s top predators. Fossil records indicate the jaguar-sized cat died out between 20,000 and 10,000 years ago (although rumors persist the “Queensland Tiger” may still survive in isolated habitats). In a new study examining Thylacoleo fossils, researchers have now found an elbow joint unique among living predatory mammals.

16 Dec 2016

Tiny bones pull India into the story of early primate evolution

Bones of an ancient rat-sized, tree-dwelling primate have recently been discovered in a coal mine in Gujarat, India, and may represent the most primitive known remnants of the divergence between the two great primate clades.

07 Dec 2016

Benchmarks: December 6, 1916: Dinosaur fossils lost at sea in World War I

One hundred years ago this month, a Canadian cargo ship — the SS Mount Temple — departed the port of Montreal on the St. Lawrence River headed for France. On board were 3,000 tons of wheat, more than 700 horses bound for service in World War I, and an unknown number of 75-million-year-old dinosaur skeletons and bones destined for the British Museum of Natural History. But the ship, and the fossils, never made it.

06 Dec 2016

New species of extinct dolphin found in Smithsonian archives

Freshwater river dolphins are one of the most compelling — and endangered — branches of the cetacean family tree. Now the discovery of a new species of extinct river dolphin found in the fossil archives of the Smithsonian’s National Museum of Natural History is shedding light on the dolphin family tree, as well as the origins of the highly endangered South Asian river dolphin.

01 Dec 2016

Turtle shells evolved for burrowing, not protection

How the turtle got its shell is one of the long-standing conundrums of paleontology. Paleontologists know that one of the first steps toward a shell was a broadening of the ribs, which occurred about 50 million years before full shells evolved. But why the broadening, which conferred some disadvantages to movement and breathing, began, has been a mystery. Now, the discovery of a proto-turtle with a partial shell in South Africa is shedding some light on the early stages of shell development.

11 Nov 2016

Unique teeth helped vegetarian dinosaurs

Although the Tyrannosaurus rex might’ve been one of the most fearsome dinosaurs to roam Earth, it wasn’t the most common. That honor belonged to a group of vegetarian duck-billed dinosaurs called hadrosaurs. And now, scientists have uncovered the secret to their success: their teeth.

21 Oct 2016

Travels in Geology: Tumbler Ridge: Finding dinosaurs — and their predecessors and descendants — in northeastern British Columbia

Tumbler Ridge Global Geopark got its start when an 8-year-old found a dinosaur footprint and convinced his father to call the experts. Today, visitors can see an exceptional source of fossils from the Precambrian through the Pleistocene, along with stunning scenery.

18 Oct 2016

Antarctic no place to hide during end-Cretaceous extinction

The end-Cretaceous extinction is famous for killing off the dinosaurs, but many other species perished as well. A new study in Nature Communications of marine fossils found in the Antarctic indicates that the extinction event was just as deadly for creatures in the polar regions.

07 Oct 2016

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