Allosaurus vs Tyrannosaurus Rex
A detailed side-by-side comparison of Allosaurus and Tyrannosaurus Rex, covering size, diet, classification, geologic period, and discovery history.
{# ═══════════════════════════════════════════════════════════════════════════ Side-by-side comparison table ═══════════════════════════════════════════════════════════════════════════ #}Side-by-Side Comparison
| Thuộc tính | Allosaurus | Tyrannosaurus Rex |
|---|---|---|
| Tên khoa học | Allosaurus fragilis | Tyrannosaurus rex |
| Phân loại | Theropoda | Tyrannosauridae |
| Kỷ | Jurassic Late | Cretaceous Late |
| Chế độ ăn | Carnivore | Carnivore |
| Chiều dài | 9.7 m | 12.3 m |
| Height | 3.5 m | 3.7 m |
| Cân nặng | 2.3 t | 8.4 t |
| Năm khám phá | 1877 | 1905 |
| Địa điểm khám phá | Garden Park, Colorado, USA | Montana, USA |
| Được đặt tên bởi | Othniel Charles Marsh | Henry Fairfield Osborn |
Size Comparison
roughly the length of a large SUV
about as long as 2 cars end-to-end
Weight Comparison
comparable to 2.3 small cars
about the weight of 1.4 elephants
Timeline Comparison
Diet Comparison
Allosaurus
CarnivoreAllosaurus was a meat-eating predator, hunting other animals for food.
Tyrannosaurus Rex
CarnivoreTyrannosaurus Rex was a meat-eating predator, hunting other animals for food.
Classification Comparison
Allosaurus
Tyrannosaurus Rex
Điểm khác biệt chính
- Allosaurus (9.7 m, ~2,300 kg) was significantly smaller and lighter than T. rex (12.3 m, ~8,400 kg).
- Allosaurus lived 80 million years earlier in the Late Jurassic; T. rex was a Late Cretaceous predator.
- T. rex had a bone-crushing bite; Allosaurus had a weaker bite but likely used a hatchet-like strike with its upper jaw.
- Allosaurus had three-fingered hands with large claws; T. rex had vestigial two-fingered arms.
- Allosaurus was the apex predator of the Morrison Formation, hunting sauropods; T. rex dominated the Hell Creek ecosystem.
Did You Know?
Tyrannosaurus Rex weighed roughly 4x more than Allosaurus.
Both Allosaurus and Tyrannosaurus Rex were carnivores.
Allosaurus lived during the Jurassic Late while Tyrannosaurus Rex lived during the Cretaceous Late, separated by roughly 44 million years.
Allosaurus was discovered 28 years earlier, in 1877.
Allosaurus belonged to Theropoda while Tyrannosaurus Rex belonged to Tyrannosauridae.
Compare With Other Dinosaurs
Allosaurus vs Stegosaurus
Carnivore vs Herbivore
Tyrannosaurus Rex vs Carcharodontosaurus
Carnivore vs Carnivore
Tyrannosaurus Rex vs Giganotosaurus
Carnivore vs Carnivore
Tyrannosaurus Rex vs Spinosaurus
Carnivore vs Piscivore
Tyrannosaurus Rex vs Triceratops
Carnivore vs Herbivore
Tyrannosaurus Rex vs Velociraptor
Carnivore vs Carnivore
Explore These Dinosaurs
Explore the Natural World
Discover more across the Nature FYI family