"Guanlong shows us how the small coelurosaurian ancestors of tyrannosaurs
took the first step that led to T-rex almost 100 million years later," said James M Clark of George Washington University.
It was the first evidence that tyrannosaurs
, relatives of today's birds, had a feathery covering.
"Although many tyrannosaur
fossils have been found over the last one hundred years in the northern Great Plains region of the northern U.S.
The next step is to determine if the braincase is typical of a mid-Cretaceous tyrannosaur
, or just one oddball data point.
Since the discovery, experts have created a new branch of the tyrannosaur
family for specimens with very long snouts.
But as much as Tyrannosaur
is well made, bleakly photographed and knowingly directed with an appreciable lack of Hollywood gloss, it still feels like it's of little use to anybody with a brain.
One of the more thoughtful figures in the film industry, he's now written and directed the startling Tyrannosaur
Gigantoraptors, it appears, grew more quickly and reached adulthood earlier than the huge tyrannosaurs
did, says Thomas R.
They took a high-energy CT scan of a 74-million-year-old skull that came from a dinosaur dubbed the Bisti Beast, which was found in northwestern New Mexico about 20 years ago and is related to the Tyrannosaurus rex, the (https://phys.org/news/2017-08-unique-imaging-dinosaur-skull-evolutionary.html) Los Alamos National Laboratory reported, calling the work the highest resolution scan scientists have ever taken of a tyrannosaur
. The skull needed high-energy imaging because it is so thick and the work gave them a closer look at the skull structure, including in the sinus and the brain cavities.
, the lineage of carnivorous theropod ("beast feet") dinosaurs that include T.
Scientists could also work out the Tyrannosaur
died from a massive blow to the skull and chest.
However with information available about the numbers of T-Rex in the rocks of the Hell Creek formation it is the closest we have got so far to discovering a tyrannosaur