Tag Archive for 'Tyrannosauridae'

A pair of adult Nanuqsaurus tyrannosaurs and their young. Image credit: James Havens.

Non-Avian Dinosaurs Nested in the Arctic, Paleontologists Say

Jun 30, 2021 by News Staff

A team of paleontologists from the University of Alaska Fairbanks and Florida State University has uncovered the first convincing evidence that several...

A juvenile Tyrannosaurus rex, based on the Jane specimen, walking through a lake. Image credit: PaleoEquii / CC BY-SA 4.0.

Juvenile Tyrannosaurs Had Powerful Bite, New Study Shows

Jun 2, 2021 by News Staff

In a paper published in the journal PeerJ, paleontologists present bite force estimates for a juvenile Tyrannosaurus rex based on mechanical tests designed...

Artistic reconstruction of a tyrannosaur creating footprints. Image credit: José Vitor Silva.

Young Tyrannosaurs Had More Slender Feet than Adults, Study Finds

Apr 23, 2021 by News Staff

An international team of paleontologists has examined a collection of 72.5-million-year-old tyrannosaur — probably Albertosaurus — footprints...

The skeleton of Trix. Image credit: Mike Bink.

Tyrannosaurus rex Walked Slower than Previously Thought

Apr 21, 2021 by News Staff

Animals display a variety of gaits and walking speeds. It is commonly assumed that they minimize locomotor energy expenditure by selecting gait kinematics...

Two Gualicho shinyae attack a smaller dinosaur. Image credit: Jorge Gonzalez / Pablo Lara.

Tyrannosaurs Lived in Groups, New Evidence Suggests

Apr 21, 2021 by News Staff

Tyrannosaurs — theropod dinosaurs that lived in what is now North America and Asia between 100 and 66 million years ago (Cretaceous period) —...

Tyrannosaurus rex, a large theropod dinosaur; theropods were a diverse group of two-legged dinosaurs that included the largest carnivores ever to walk our planet. Image credit: Az Dude.

How Many Tyrannosaurus rex Individuals Ever Roamed Earth?

Apr 16, 2021 by News Staff

Paleontologists estimate that the abundance of one of the best-known dinosaurs, Tyrannosaurus rex, at any one time was about 20,000 individuals, that the...

An artist’s impression of a juvenile tyrannosaur. Image credit: Julius Csotonyi.

Tyrannosaur Hatchlings Were as Big as Medium-Sized Dog

Jan 26, 2021 by News Staff

An international team of paleontologists has examined the fossilized remains of baby tyrannosaurid dinosaurs found in Alberta, Canada, and Montana, the...