Armed with playlists, tweezers and patience, researchers at Petrified Forest National Park announced the discovery of a new species of tanystropheid reptile in the journal Palaeodiversity on Aug. 1.

A fossil jawbone discovered in 1899 in South Wales has been reclassified as a new dinosaur species, Newtonsaurus.

Paleontologists describe four new species of extinct ancestral penguins that help shed light on how the iconic birds evolved ...

Seventy million years ago, southern Patagonia was home to dinosaurs, turtles, and mammals—but also to a fierce crocodile-like predator. A newly discovered fossil, astonishingly well-preserved, reveals ...

Stealth games can be tense affairs. But predator-style stealth transforms the tension into power. When every corner hides a chance to stalk, ambush, vanish, and conquer, that’s when stealth stops ...

A dinosaur dubbed one of the "strangest" ever found boasted an elaborate armory of long bony spikes and a tail weapon, ...

A giant crocodile-like apex predator hunted large prey — probably including medium-sized dinosaurs — around 70 million years ago in what is now southern Argentina 1. Reptiles that resemble modern-day ...

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The new fossil was unearthed in a remote part of Argentinian Patagonia—and had teeth comparable to a T. rex, says National ...

Seventy million years ago, southern Patagonia was a warm, seasonally wet landscape where dinosaurs, turtles, frogs, and mammals thrived. Hidden within its floodplains, a powerful predator stalked its ...