T. rex's family tree just got one member larger. Scientists unearthed bones from a new dinosaur species, including an adult specimen and bones from a "teenager" that lived some 75 million years ago.

Researchers have scanned the skull of Bistahieversor sealeyi, a type of tyrannosaur found in New Mexico. Los Alamos National Laboratory The inside of a tyrannosaur skull has clues about how the most ...

A new species of tyrannosaur has been discovered in the Bisti/De-na-zin Wilderness of New Mexico. Bistahieversor was different from other tyrannosauroids in having an extra opening above its eye, a ...

High-resolution neutron imaging and CT scans of the tyrannosaur Bistahieversor sealeyi’s 74-million-year-old skull shed light on its evolution. Flies carrying disease-causing microbes will likely ...

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