That’s easier said than done. In 1890, there was only one species of Allosaurus: A. fragilis. In 2025, there are four species, and more could be identified as the field of paleontology advances. This ...

Among theropods, a specimen of Allosaurus fragilis from the Cleveland-Lloyd Dinosaur Quarry exhibited lesions consistent with a possible neoplastic growth. Hadrosaurs (duck-billed dinosaurs) appear ...

There are 4 species of dinosaurs belonging to the genus Allosaurus. They are A. fragilis, A. europaeus mateus, A. amplus marsh, and A. lucasi. However, the only known species of the tyrannosaurus is ...

The airport held a surprise reveal of an Allosaurus fragilis (Utah's state fossil) cast prior to an October 2024 celebration for the new terminal's third phase of opening. A gift from the Natural ...

“That’s where A. jimmadseni has been found, but the skull of the large Allosaurus looks like A. fragilis, which is a different species.” A. fragilis and A. jimmadseni are the two species of Allosaurus ...

Dr Alexandra Freeman tells the story of 'Big Al'– a remarkable Allosaurus fragilis skeleton. Where did it all start? The first days in the life of an Allosaurus born about 145 million years ago.

The auction house sold the fossils as part of a sale titled Jurassic Icons: Allosaurus and Stegosaurus that featured a pair of allosaurus fossils—one juvenile and one adult—as well as the ...

All three skeletons - two Allosaurus and one Stegosaurus - were excavated from the same site in Carbon County, Wyoming and travelled to London in 12 crates, where they were rebuilt. James Hyslop ...

The research has led to the recent publication of the latest findings, titled “Forearm range of motion in Allosaurus fragilis” in the international journal Historical Biology. The joint ...

The Allosaurus fragilis is Utah’s official state fossil. The predators roamed Utah’s landscapes 150 million years ago and are now one of the most popular dinosaurs in the world. Some 50 Allosaurus ...

Finally, “Ally the Dinosaur,” a replica fossil skeleton of the Allosaurus fragilis — Utah’s state fossil — has been donated to the airport by the Natural History Museum of Utah, representing the giant ...

Paleontologists on a Wyoming dig led by The Children's Museum have discovered a rarity: the almost intact snout of an allosaurus. While digging with a piece of construction equipment, site manager ...