Allosaurus
ExploreAncient
Allosaurus
Allosaurus fragilis
Allosaurus was a prehistoric dinosaur known for its distinctive features. Scientists study its bones to learn about how dinosaurs lived.
Habitat: Mesozoic forests and floodplains
Appearance
The Allosaurus is a large, bipedal predator with a powerful build. It has distinctive bony crests above its eyes, making its head look rugged. Its skin likely varied in earthy tones of green, brown, or grey.
KingdomAnimalia
Category
AncientRarity
Common
Danger
1/5 · Very low
Snaps
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Interesting facts
Allosaurus was the top predator in North America for millions of years!
Fossil evidence suggests Allosaurus might have hunted in packs, like wolves!
It could open its jaw incredibly wide, taking massive bites from prey!
Its name means 'different lizard' because of its unique vertebrae!
Special abilities
Ability
Slicing Jaw Power
Allosaurus can deliver devastating bites because of its sharp, serrated teeth that help them slice through tough hide and flesh.
Ability
Bone-Crushing Grip
Allosaurus has strong, three-fingered hands with sharp claws that help them grasp and hold onto large, struggling prey.
Ability
Crested Vision
Allosaurus has unique bony crests above its eyes that likely helped them recognize others of their species or intimidate rivals.
Measurements & details
- Estimated Length
- 8.5-10 m
- Estimated Weight
- 1500-2000 kg
- Era
- Ancient (Late Jurassic)
- Extinct Millions Years Ago
- 145
Diet & Feeding
A fierce meat-eater that hunted large plant-eating dinosaurs like Stegosaurus and Apatosaurus.
Primary Foods
- Stegosaurus
- Camarasaurus
- Apatosaurus
- other large dinosaurs
Foraging Method
- Pursuit
Ecological connections
hunts
Stegosaurus
Stegosaurus stenops
A primary prey animal, easily injured by Allosaurus bites.
hunts
Camarasaurus
Camarasaurus supremus
Frequently preyed upon, especially juveniles or sick individuals.
hunts
Apatosaurus
Apatosaurus ajax
Hunted by Allosaurus, particularly juveniles or the weak.
Traits
Ancient
Ancient refers to organisms, objects, or geological formations that have existed for an extremely long period.
Artifact
An artifact is an object made or modified by human culture, typically of historical or archaeological interest.
Fossil
A fossil is the preserved remains or traces of an ancient organism embedded in rock or other geological deposits.
Giant
Giant describes organisms or objects of significantly larger size than average for their species or type.
Also known as
Allosaurus fragilis
Collections
Safety
Danger
1/5 · Very low
While extremely dangerous in their time, this creature is now extinct.
Frequently Asked Questions
How long is Allosaurus?
8.5-10 m
How much does Allosaurus weigh?
1500-2000 kg
What does Allosaurus eat?
A fierce meat-eater that hunted large plant-eating dinosaurs like Stegosaurus and Apatosaurus.
Where is Allosaurus usually found?
Mesozoic forests and floodplains
How does Allosaurus hunt?
Pursuit
What geologic era did Allosaurus live in?
Ancient (Late Jurassic)
When did Allosaurus go extinct?
145
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