The type species Tyrannosaurus rex (rex meaning 'king' in Latin), often shortened to T. rex or colloquially T-Rex, is one of the best represented theropods. It lived throughout what is now western North America, on what was then an island continent known as Laramidia.

Tyrannosaurus rex is the best-known and largest member of a group of theropod dinosaurs called tyrannosaurs; its scientific name is Latin for “king of the tyrant lizards.” Since 1902 paleontologists have recognized the T. rex as the only formal member of the genus Tyrannosaurus.

Almost everything about Tyrannosaurus rex indicates the enormous power of one of the largest theropod dinosaurs that ever existed. The first skeleton of Tyrannosaurus rex was discovered in 1902 in Hell Creek, Montana, by the Museum's famous fossil hunter Barnum Brown.

T. rex is characterized by an oversized head with forward facing eyes, huge muscular jaws, robust serrated teeth, a powerful tail, and tiny arms. T. rex was the apex predator of its time. It was a powerful carnivore that hunted many large dinosaurs including the Ankylosaurs, Triceratops (Ceratopsids), Hadrosaurs, and the last of the Sauropods.

In the March 2005 Science magazine, Mary Higby Schweitzer of North Carolina State University and colleagues announced the recovery of soft tissue from the marrow cavity of a fossilized leg bone from a 68-million-year-old T. Rex.

Feb 12, 2013 · Even though Tyrannosaurus rex is arguably the most recognizable dinosaur, college students asked to draw the prehistoric beast tend to get it all wrong, researchers say.

Mar 21, 2019 · RSM P2523.8 is referred to T. rex based on the following suite of anatomical characteristics: (1) premaxillary teeth arranged in a laterally oriented tooth row and with D-shaped cross-sections; (2) a maxilla with a rounded rostral margin and a convex ventral margin; (3) “keyhole-shaped” and anteriorly directed orbits; (4) a corneal boss ...

Watch Mark Norell answer questions about Tyrannosaurus rex ! He is a paleontologist at the American Museum of Natural History. Who discovered T. rex? How many T. rex specimens have been found? Who are the relatives of T. rex? How do scientists calculate the age of a T. rex? Why are the arms and fingers of T. rex so small?

Jul 11, 2024 · T-Rex, the king of Cretaceous predators, with its full taxonomic name “Tyrannosaurus rex,” reigned 66 million years ago. Envision a creature the size of a school bus, with teeth the length of your forearm and a bite force …

Feb 6, 2019 · We apply for the first time anatomical network analysis to study skull bone integration and modular constructions in tyrannosaur and compare it with five representatives of the major amniote...