Allosaurus vs Styracosaurus
A detailed side-by-side comparison of Allosaurus and Styracosaurus, covering size, diet, classification, geologic period, and discovery history.
Side-by-Side Comparison
| Property | Allosaurus | Styracosaurus |
|---|---|---|
| Scientific Name | Allosaurus fragilis | Styracosaurus albertensis |
| Classification | Theropoda | Ceratopsia |
| Period | Jurassic Late | Cretaceous Late |
| Diet | Carnivore | Herbivore |
| Length | 9.7 m | 5.5 m |
| Height | 3.5 m | 1.8 m |
| Weight | 2.3 t | 2.7 t |
| Discovery Year | 1877 | 1913 |
| Discovery Location | Garden Park, Colorado, USA | Dinosaur Park Formation, Alberta, Canada |
| Named By | Othniel Charles Marsh | Lawrence Lambe |
Size Comparison
roughly the length of a large SUV
roughly the length of a large SUV
Weight Comparison
comparable to 2.3 small cars
comparable to 2.7 small cars
Timeline Comparison
Diet Comparison
Allosaurus
CarnivoreAllosaurus was a meat-eating predator, hunting other animals for food.
Styracosaurus
HerbivoreStyracosaurus was a plant-eater, feeding on vegetation like ferns, conifers, and cycads.
Classification Comparison
Allosaurus
Styracosaurus
Did You Know?
Allosaurus was about 1.8x longer than Styracosaurus.
Allosaurus was a carnivore while Styracosaurus was a herbivore.
Allosaurus lived during the Jurassic Late while Styracosaurus lived during the Cretaceous Late, separated by roughly 44 million years.
Allosaurus was discovered 36 years earlier, in 1877.
Allosaurus belonged to Theropoda while Styracosaurus belonged to Ceratopsia.
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