New fossil suggests dinosaurs not so fierce after all

(PhysOrg.com) -- A new species of dinosaur discovered in Arizona suggests dinosaurs did not spread throughout the world by overpowering other species, but by taking advantage of a natural catastrophe that wiped out their ...

Brazil experts find fossils of pre-dinosaur creature

Brazilian paleontologists announced Tuesday they discovered the well-preserved and near-complete fossils of a pre-dinosaur predator that lived some 238 million years ago.

Team explains how dinosaurs rose to prominence

A shade more than 200 million years ago, the Earth looked far different than it does today. Most land on the planet was consolidated into one continent called Pangea. There was no Atlantic Ocean, and the rulers of the animal ...

Dinosaurs might be older than previously thought

(PhysOrg.com) -- Until now, paleontologists have generally believed that the closest relatives of dinosaurs possibly looked a little smaller in size, walked on two legs and were carnivorous. However, a research team including ...

Reptiles stood upright after mass extinction

(PhysOrg.com) -- Reptiles changed their walking posture from sprawling to upright immediately after the end-Permian mass extinction, the biggest crisis in the history of life that occurred some 250 million years ago and wiped ...

Fossil magnetism helps prove mass extinction theory

(PhysOrg.com) -- Were major extinction events real biological catastrophes or were they merely the result of gaps in the fossil record? Research by a team of geologists from the Universities of Bristol, Plymouth, and Saratov ...

New, small, ancient crocodile-like reptile described in Brazil

The discovery of a new, ancient, predatory reptile dubbed Parvosuchus aurelioi—part of a group of crocodile-like reptiles called pseudosuchians—in Brazil is described in a paper in Scientific Reports. The specimen, which ...

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