WASHINGTON (Reuters) - The dreaded dinosaur Allosaurus was the scourge of the Jurassic Period landscape some 150 million years ago, an apex predator just as Tyrannosaurus rex was 80 million years ...
A remarkable new species of meat-eating dinosaur has been unveiled at the Natural History Museum of Utah. Paleontologists unearthed the first specimen in early 1990s in Dinosaur National Monument in ...
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In this month’s Specimen Spotlight, find out what makes the Smithsonian’s Allosaurus specimen so special Jack Tamisiea The museum’s fossil specimen of Allosaurus fragilis is perched like a nesting ...