Allosaurus vs Diplodocus
A detailed side-by-side comparison of Allosaurus and Diplodocus, covering size, diet, classification, geologic period, and discovery history.
Side-by-Side Comparison
| Property | Allosaurus | Diplodocus |
|---|---|---|
| Scientific Name | Allosaurus fragilis | Diplodocus longus |
| Classification | Theropoda | Sauropoda |
| Period | Jurassic Late | Jurassic Late |
| Diet | Carnivore | Herbivore |
| Length | 9.7 m | 25.0 m |
| Height | 3.5 m | 5.0 m |
| Weight | 2.3 t | 14.0 t |
| Discovery Year | 1877 | 1878 |
| Discovery Location | Garden Park, Colorado, USA | Canon City, Colorado, USA |
| Named By | Othniel Charles Marsh | Othniel Charles Marsh |
Size Comparison
roughly the length of a large SUV
about as long as 5 cars end-to-end
Weight Comparison
comparable to 2.3 small cars
about the weight of 2.3 elephants
Timeline Comparison
Allosaurus and Diplodocus both lived during the Jurassic Late period and may have shared the same habitats.
Diet Comparison
Allosaurus
CarnivoreAllosaurus was a meat-eating predator, hunting other animals for food.
Diplodocus
HerbivoreDiplodocus was a plant-eater, feeding on vegetation like ferns, conifers, and cycads.
Classification Comparison
Allosaurus
Diplodocus
Did You Know?
Diplodocus was about 2.6x longer than Allosaurus.
Diplodocus weighed roughly 6x more than Allosaurus.
Allosaurus was a carnivore while Diplodocus was a herbivore.
Both dinosaurs lived during the Jurassic Late period and may have coexisted.
Allosaurus was discovered 1 years earlier, in 1877.
Allosaurus belonged to Theropoda while Diplodocus belonged to Sauropoda.