A display of an Allosaurus jimmadseni skull, left, next to an Allosaurus fragilis skull inside the Natural History Museum of Utah collections room on Friday, Jan. 24, 2020.

It had a short, narrow skull that was weaker and had less overlapping vision than Allosaurus fragilis, a later Allosaurus and the state fossil of Utah.

The skull of the carnivorous dinosaur Allosaurus fragilis can resist levels of stress much higher than those expected from chewing, which may provide insight into the animal's method of attacking ...

Allosaurus jimmadseni is particularly notable for its slender, narrow skull with short sharp nasal crests compared to its close relative and successor Allosaurus fragilis.

Object Details Collector Marshall P. Felch Site Name Felch-Marsh Quarry Geologic Age Mesozoic - Jurassic - Late - Kimmeridgian Record Last Modified 17 Oct 2024 Skeletal Morphology Skull element, lower ...

Even though the skull appears fragile--as the Latin species name “fragilis” implies--Rayfield said it was actually extremely tough and durable, even “overbuilt.” It allowed Allosaurus to ...

The study examined three species, meat-eaters Allosaurus fragilis, Tyrannosaurus rex and herbivore Erlikosaurus andrewsi. All belong to the group of two-legged dinosaurs called theropods.

Allosaurus was first discovered and described in 1877. One of the most well-known fossils is “Big Al,” which researchers previously thought was an Allosaurus fragilis.

Skull element, lower jaw, right maxilla Stratigraphy Morrison Fm - Brushy Basin Mbr Place Fremont County, Colorado, United States, North America See more items in Paleogeneral Reptiles/Amphibians ...

Allosaurus was first discovered and described in 1877. One of the most well-known fossils is "Big Al," which researchers previously thought was an Allosaurus fragilis.