Allosaurus vs Amargasaurus
A detailed side-by-side comparison of Allosaurus and Amargasaurus, covering size, diet, classification, geologic period, and discovery history.
Side-by-Side Comparison
| Property | Allosaurus | Amargasaurus |
|---|---|---|
| Scientific Name | Allosaurus fragilis | Amargasaurus cazaui |
| Classification | Theropoda | Sauropoda |
| Period | Jurassic Late | Cretaceous Early |
| Diet | Carnivore | Herbivore |
| Length | 9.7 m | 10.0 m |
| Height | 3.5 m | 2.5 m |
| Weight | 2.3 t | 2.6 t |
| Discovery Year | 1877 | 1991 |
| Discovery Location | Garden Park, Colorado, USA | La Amarga Formation, Argentina |
| Named By | Othniel Charles Marsh | Leonardo Salgado & Jose Bonaparte |
Size Comparison
roughly the length of a large SUV
about as long as 2 cars end-to-end
Weight Comparison
comparable to 2.3 small cars
comparable to 2.6 small cars
Timeline Comparison
Diet Comparison
Allosaurus
CarnivoreAllosaurus was a meat-eating predator, hunting other animals for food.
Amargasaurus
HerbivoreAmargasaurus was a plant-eater, feeding on vegetation like ferns, conifers, and cycads.
Classification Comparison
Allosaurus
Amargasaurus
Did You Know?
Allosaurus was a carnivore while Amargasaurus was a herbivore.
Allosaurus lived during the Jurassic Late while Amargasaurus lived during the Cretaceous Early, separated by roughly 0 million years.
Allosaurus was discovered 114 years earlier, in 1877.
Allosaurus belonged to Theropoda while Amargasaurus belonged to Sauropoda.