Allosaurus vs Pachycephalosaurus
A detailed side-by-side comparison of Allosaurus and Pachycephalosaurus, covering size, diet, classification, geologic period, and discovery history.
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| Properti | Allosaurus | Pachycephalosaurus |
|---|---|---|
| Nama Ilmiah | Allosaurus fragilis | Pachycephalosaurus wyomingensis |
| Klasifikasi | Theropoda | Pachycephalosauria |
| Periode | Jurassic Late | Cretaceous Late |
| Diet | Carnivore | Herbivore |
| Panjang | 9.7 m | 4.5 m |
| Height | 3.5 m | 1.8 m |
| Berat | 2.3 t | 450 kg |
| Tahun Penemuan | 1877 | 1943 |
| Lokasi Penemuan | Garden Park, Colorado, USA | Montana, USA |
| Dinamai Oleh | Othniel Charles Marsh | Barnum Brown & Erich Schlaikjer |
Size Comparison
roughly the length of a large SUV
roughly the length of a large SUV
Weight Comparison
comparable to 2.3 small cars
about 6 adult humans
Timeline Comparison
Diet Comparison
Allosaurus
CarnivoreAllosaurus was a meat-eating predator, hunting other animals for food.
Pachycephalosaurus
HerbivorePachycephalosaurus was a plant-eater, feeding on vegetation like ferns, conifers, and cycads.
Classification Comparison
Allosaurus
Pachycephalosaurus
Did You Know?
Allosaurus was about 2.2x longer than Pachycephalosaurus.
Allosaurus weighed roughly 5x more than Pachycephalosaurus.
Allosaurus was a carnivore while Pachycephalosaurus was a herbivore.
Allosaurus lived during the Jurassic Late while Pachycephalosaurus lived during the Cretaceous Late, separated by roughly 44 million years.
Allosaurus was discovered 66 years earlier, in 1877.
Allosaurus belonged to Theropoda while Pachycephalosaurus belonged to Pachycephalosauria.
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