Apatosaurus vs Eoraptor
A detailed side-by-side comparison of Apatosaurus and Eoraptor, covering size, diet, classification, geologic period, and discovery history.
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| Property | Apatosaurus | Eoraptor |
|---|---|---|
| Scientific Name | Apatosaurus ajax | Eoraptor lunensis |
| Classification | Sauropoda | Saurischia |
| Period | Jurassic Late | Triassic Late |
| Diet | Herbivore | Omnivore |
| Length | 22.0 m | 1.0 m |
| Height | 4.5 m | 0.3 m |
| Weight | 22.7 t | 10 kg |
| Discovery Year | 1877 | 1993 |
| Discovery Location | Morrison Formation, Colorado, USA | Ischigualasto Formation, Argentina |
| Named By | Othniel Charles Marsh | Paul Sereno et al. |
Size Comparison
about as long as 4 cars end-to-end
smaller than a human child
Weight Comparison
about the weight of 3.8 elephants
lighter than a human adult
Timeline Comparison
Diet Comparison
Apatosaurus
HerbivoreApatosaurus was a plant-eater, feeding on vegetation like ferns, conifers, and cycads.
Eoraptor
OmnivoreEoraptor had an omnivorous diet, consuming both plants and small animals.
Classification Comparison
Apatosaurus
Eoraptor
Group: Saurischia
(Lizard-hipped dinosaurs)
Did You Know?
Apatosaurus was about 22.0x longer than Eoraptor.
Apatosaurus weighed roughly 2270x more than Eoraptor.
Apatosaurus was a herbivore while Eoraptor was a omnivore.
Apatosaurus lived during the Jurassic Late while Eoraptor lived during the Triassic Late, separated by roughly 92 million years.
Apatosaurus was discovered 116 years earlier, in 1877.
Apatosaurus belonged to Sauropoda while Eoraptor belonged to Saurischia.
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