Image: (D. Chure & M. Loewen, 2020/PeerJ) Despite its early position in the Allosaurus family tree and some primitive features compared to its successors, this theropod was an absolute beast.

Assigning specimens to the Allosaurus family tree has long been a point of contention in the field, according to a statement. While some have argued that as many as 12 separate species exist ...

A new species of carnivorous dinosaur, called Allosaurus jimmadseni, has been described in a new paper published today in the open-access scientific journal PeerJ. A. jimmadseni came 5 million ...

Allosaurus was the most common large carnivore of the Late Jurassic in North America. It was a smaller predecessor of the Cretaceous Tyrannosaurus. Strong forelimbs with sharp claws, powerful hind ...

rex fossil trade hurting scientific research, study claims "Big theropods like Allosaurus probably weren ... corpses were part of the predator's own family. For a limited time, you can take ...

The hunting allosaurus used its head like a baseball bat, knocking its prey sideways before using its teeth to tear away flesh. Allosaurs, which were built like tyrannosaurs only smaller ...