Apatosaurus vs Stegosaurus
A detailed side-by-side comparison of Apatosaurus and Stegosaurus, covering size, diet, classification, geologic period, and discovery history.
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| Property | Apatosaurus | Stegosaurus |
|---|---|---|
| Scientific Name | Apatosaurus ajax | Stegosaurus stenops |
| Classification | Sauropoda | Stegosauria |
| Period | Jurassic Late | Jurassic Late |
| Diet | Herbivore | Herbivore |
| Length | 22.0 m | 9.0 m |
| Height | 4.5 m | 4.0 m |
| Weight | 22.7 t | 5.0 t |
| Discovery Year | 1877 | 1877 |
| Discovery Location | Morrison Formation, Colorado, USA | Morrison, Colorado, USA |
| Named By | Othniel Charles Marsh | Othniel Charles Marsh |
Size Comparison
about as long as 4 cars end-to-end
roughly the length of a large SUV
Weight Comparison
about the weight of 3.8 elephants
about the weight of 0.8 elephants
Timeline Comparison
Apatosaurus and Stegosaurus both lived during the Jurassic Late period and may have shared the same habitats.
Diet Comparison
Apatosaurus
HerbivoreApatosaurus was a plant-eater, feeding on vegetation like ferns, conifers, and cycads.
Stegosaurus
HerbivoreStegosaurus was a plant-eater, feeding on vegetation like ferns, conifers, and cycads.
Classification Comparison
Apatosaurus
Stegosaurus
Did You Know?
Apatosaurus was about 2.4x longer than Stegosaurus.
Apatosaurus weighed roughly 5x more than Stegosaurus.
Both Apatosaurus and Stegosaurus were herbivores.
Both dinosaurs lived during the Jurassic Late period and may have coexisted.
Apatosaurus belonged to Sauropoda while Stegosaurus belonged to Stegosauria.
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