That’s the literal translation of the term Dinosauria, coined by Sir Richard Owen in the 19th century to describe the colossal bones early paleontologists were unearthing. For a long time, the name ...

Among the strangest branches of the dinosaur family tree are the alvarezsauroids, small, bird‑like theropods that lived from the Jurassic into the Cretaceous. They don’t fit the image of sharp‑toothed ...

For years, we suspected that Alvarezsaurids underwent a rare process of evolutionary miniaturization directly coupled to a ...

Sixty-six million years ago, a massive asteroid smashed into Earth. Life has undergone at least five mass extinctions in the ...

Scientists discovered a crocodile relative that is 200 million years old and had two legs. The diversity of reptiles during the Triassic period is shown by this discovery, which is long before ...

Three tiny Purgatorius teeth found in Colorado are helping scientists trace how early primates evolved and spread across North America.

In the long shadow of the asteroid that wiped out the dinosaurs, life appears to have bounced back with surprising speed. A new analysis of sedimentation rates suggests that the first wave of marine ...

The authors of the study examining the fossil of Haolong dongi at the Anhui Geological Museum in Hefei, China. © Thierry Hubin © Thierry Hubin Production of this ...

A nearly complete fossil of a dinosaur from Argentina, which would have weighed less than 1 kg when alive, may be the smallest known dinosaur from South America discovered to date. The dinosaur, ...

Do the bones of all Nile crocodiles have the same number of growth marks as their age? And can such growth rings be counted ...

A few teeth, smaller than a grain of rice, are changing the map of your earliest primate relatives. They come from a creature called Purgatorius, a tiny tree-dwelling mammal that lived about 66 ...