Allosaurus vs Therizinosaurus
A detailed side-by-side comparison of Allosaurus and Therizinosaurus, covering size, diet, classification, geologic period, and discovery history.
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Side-by-side comparison table
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Side-by-Side Comparison
| Property |
Allosaurus |
Therizinosaurus |
| Scientific Name |
Allosaurus fragilis |
Therizinosaurus cheloniformis |
| Classification |
Theropoda |
Theropoda |
| Period |
Jurassic Late |
Cretaceous Late |
| Diet |
Carnivore |
Herbivore |
| Length |
9.7 m |
10.0 m |
| Height |
3.5 m |
4.0 m |
| Weight |
2.3 t |
5.0 t |
| Discovery Year |
1877 |
1954 |
| Discovery Location |
Garden Park, Colorado, USA |
Nemegt Formation, Mongolia |
| Named By |
Othniel Charles Marsh |
Evgeny Maleev |
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Visual size comparison
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Size Comparison
Allosaurus
9.7 m
roughly the length of a large SUV
Therizinosaurus
10.0 m
about as long as 2 cars end-to-end
Weight Comparison
Allosaurus
2.3 t
comparable to 2.3 small cars
Therizinosaurus
5.0 t
about the weight of 0.8 elephants
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Timeline comparison
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Diet comparison
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Diet Comparison
Allosaurus
Carnivore
Allosaurus was a meat-eating predator, hunting other animals for food.
Therizinosaurus
Herbivore
Therizinosaurus was a plant-eater, feeding on vegetation like ferns, conifers, and cycads.
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Classification comparison
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Classification Comparison
Both dinosaurs share a common ancestor within the Theropoda clade.
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Key differences (from DinoComparison model)
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Did You Know? fun facts
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Did You Know?
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Therizinosaurus weighed roughly 2x more than Allosaurus.
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Allosaurus was a carnivore while Therizinosaurus was a herbivore.
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Allosaurus lived during the Jurassic Late while Therizinosaurus lived during the Cretaceous Late, separated by roughly 44 million years.
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Allosaurus was discovered 77 years earlier, in 1877.
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Both belong to the Theropoda clade, making them relatively close relatives.
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Related comparisons
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Compare With Other Dinosaurs
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Explore these dinosaurs
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