EasyAllosaurus
Allosaurus fragilis
AL-oh-SORE-us· “different lizard”
🕰️ Jurassic🥩 carnivore🦴 Allosauridae
9.5 m
Length
3 m
Height
2.3 t
Weight
The top predator of the Late Jurassic, with short horns above its eyes and a mouth that opened extremely wide. It hunted the great plant-eaters of its time, possibly in groups.
When
Late Jurassic, ~155–145 million years ago
Found in
United States
Discovered
Othniel Charles Marsh, 1877
Did you know?
- More than 46 individuals were found in one Utah quarry alone.
- It may have used its upper jaw like a hatchet to slash prey.
- It lived 80 million years before T. rex — they never met.
Artwork: TotalDino, Wikimedia Commons, CC BY 4.0.