A Texas man is suing the Trump administration over its attempts to seize his 70 million-year-old Tyrannosaurus bataar skull.

United States of America v One Tyrannosaurus Bataar Skeleton is surely one of the most bizarre court cases ever heard in America. What was the prosecution’s case? And who was the defendant?

A newly identified dinosaur species from Mongolia is rewriting the history of the T. rex family tree. Dubbed the “Dragon Prince” (scientifically named Khankhuuluu mongoliensis), this ...

The new dinosaur species has been named Khankhuuluu mongoliensis, meaning “Prince of Dragons of Mongolia.” The fossils were discovered in the 1970s in Mongolia.

Paleontology may be entering another great era of discovery: characterized by serial misidentification in decades past.

David C. Parris, 66, of West Windsor, curator of natural history at the New Jersey State Museum in Trenton, holds a Tyrannosaurus rex toe bone May 4. Behind him is a cast of a T-Rex skull.

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Fossils thought to belong to juvenile Tyrannosaurus rex suggest that the bone-crushing behemoths were sleek, fleet-footed predators with knife-like teeth in their teenage years.

One of the most recognizable landmarks in Tucson — especially by the city's younger generations — the two-story Tyrannosaurus rex was installed by Michelle and Michael Retzer, who have owned ...