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An artist’s rendering of Auroraceratops shows its bipedal posture as well as the beak and frill that characterize it as a member of the horned dinosaurs. Paleontologists from Penn led a team in characterizing this species, discovered in China

Small horned dinosaur from China, a Triceratops relative, walked on two...

When carbon emissions pass a critical threshold, it can trigger a spike-like reflex in the carbon cycle, in the form of severe ocean acidification that lasts for 10,000 years, according to a new MIT study.

Breaching a ‘carbon threshold’ could lead to mass extinction

This 2.1-billion-year-old sediment from a clay formation in Gabon has high concentrations of potassium, which could only have been caused by ancient microbes, according to new research.

Scientists develop new method for studying early life in ancient rocks

Calcified plankton dating from 95 million years ago (images captured in the Plymouth Electron Microscopy Centre)

Evolution of life in the ocean changed 170 million years ago

Crittendeceratops

When the dinosaurs died, lichens thrived

Illustration of marine fossils that have existed since the Cambrian. Represented taxa include brachiopods, trilobites, ammonites, bivalves, and decapods.

A new normal: Study explains universal pattern in fossil record

Fragment of Tarbosaurus lower jaw with teeth sampled (white stripes on tooth enamel)

Tooth enamel analyses offer insights into the diet and habitat of...

Eocoracias brachyptera fossil sample used for this study.

Blue color tones in fossilized prehistoric feathers

A hitherto unknown type of carnivorous dinosaur measuring just over a meter and a half long that lived 90 million years ago has been identified in the Cruzeiro do Oeste municipality of southern Brazil

Desert-dwelling carnivorous dinosaur found in Brazil

Artist’s reconstruction of Isisfordia molnari.

The ancient croc that preyed on dinosaurs

An artists impression of a Redlichia trilobite on the Cambrian seafloor.

New ‘king’ of fossils discovered on Kangaroo Island

The fossilized remains of Dickinsonia found at the Nilpena Heritage site in Australia. Credit: Scott Evans / UCR

Some of Earth’s oldest animals could take trips

Fossils

Marine life recovery following the dinosaurs’ extinction

sluglike mollusk Wiwaxia

Rare fossils provide more detailed picture of biodiversity during Middle Ordovician

Reconstruction of the studied pterosaur

Feathers came first, then birds

During the Early Cretaceous period (145-100 million years ago), nonavian dinosaurs likely migrated between Africa and Europe. Image adapted from research figure originally published in Systematic Biology

In hot pursuit of dinosaurs: Tracking extinct species on ancient Earth...

Phuwiangvenator and Vayuraptor were fast and dangerous predators. Although only half as long as its relative, the T. rex, Phuwiangvenator almost reached the size of an Asian elephant.

Thai dinosaur is a cousin of T. rex

The key fossil examined in this study is a 3-million-year-old extinct species of field mouse from Germany.

Researchers identify reddish coloring in an ancient fossil

Microscopic view on marine plankton.

Plankton as a climate driver instead of the sun?

An artist’s impression of Rhoetosaurus brownei, (c) Queensland Museum 2014. Credit: Konstantinov, Atuchin & Hocknull.

A high-heeled dinosaur?

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