It has been a good month for tyrannosaur research. We have been introduced to the comparatively tiny tyrannosauroid Raptorex, have learned that Tyrannosaurus probably suffered from a parasitic ...

Second specimen collected by the 2001 joint American Museum-Mongolian Academy of Science expedition to the Gobi Desert. Cf. introd. Summary The late Cretaceous tyrannosaurid Alioramus altai is known ...

The tyrannosaur family tree just got a little bigger. A newfound relative of Tyrannosaurus rex was a smaller, and more graceful, carnivore than its fearsome cousin, but it sported some bizarre ...

Looming larger than a double-decker bus and baring teeth that have been likened to serrated bananas, Tyrannosaurus rex has long been considered one of the most fearsome creatures ever to have walked ...

The tyrannosaurid family just keeps growing. Following the surprise discovery last month of a human-sized Tyrannosaurus ancestor, paleontologists have unearthed yet another T. rex cousin from the Gobi ...

Now, just a few weeks after tiny, early Raptorex kriegsteini was unveiled, a new wrench has been thrown into the family tree of the tyrannosaurs. The new Alioramus altai—a horned, long-snouted, ...

Say “tyrannosaur” and most people picture a clunky, heavy-set beast with huge teeth and a brutish character. But the latest member of the team was built more like a ballerina. The largely intact ...

US authorities plan to return the skull and vertebrae of an Alioramus dinosaur, a relative of the iconic Tyrannosaurus Rex, to Mongolia after Customs and Border Protection agents became suspicious of ...