Psittacosaurus vs Styracosaurus
A detailed side-by-side comparison of Psittacosaurus and Styracosaurus, covering size, diet, classification, geologic period, and discovery history.
Side-by-Side Comparison
| Property | Psittacosaurus | Styracosaurus |
|---|---|---|
| Scientific Name | Psittacosaurus mongoliensis | Styracosaurus albertensis |
| Classification | Ceratopsia | Ceratopsia |
| Period | Cretaceous Early | Cretaceous Late |
| Diet | Herbivore | Herbivore |
| Length | 2.0 m | 5.5 m |
| Height | 0.6 m | 1.8 m |
| Weight | 20 kg | 2.7 t |
| Discovery Year | 1923 | 1913 |
| Discovery Location | Mongolia | Dinosaur Park Formation, Alberta, Canada |
| Named By | Henry Fairfield Osborn | Lawrence Lambe |
Size Comparison
about the size of a human adult
roughly the length of a large SUV
Weight Comparison
lighter than a human adult
comparable to 2.7 small cars
Timeline Comparison
Diet Comparison
Psittacosaurus
HerbivorePsittacosaurus was a plant-eater, feeding on vegetation like ferns, conifers, and cycads.
Styracosaurus
HerbivoreStyracosaurus was a plant-eater, feeding on vegetation like ferns, conifers, and cycads.
Classification Comparison
Psittacosaurus
Styracosaurus
Both dinosaurs share a common ancestor within the Ceratopsia clade.
Did You Know?
Styracosaurus was about 2.8x longer than Psittacosaurus.
Styracosaurus weighed roughly 135x more than Psittacosaurus.
Both Psittacosaurus and Styracosaurus were herbivores.
Psittacosaurus lived during the Cretaceous Early while Styracosaurus lived during the Cretaceous Late, separated by roughly 0 million years.
Styracosaurus was discovered 10 years earlier, in 1913.
Both belong to the Ceratopsia clade, making them relatively close relatives.