Amargasaurus vs Tyrannosaurus Rex

A detailed side-by-side comparison of Amargasaurus and Tyrannosaurus Rex, covering size, diet, classification, geologic period, and discovery history.

Side-by-Side Comparison

Свойство Amargasaurus Tyrannosaurus Rex
Научное название Amargasaurus cazaui Tyrannosaurus rex
Классификация Sauropoda Tyrannosauridae
Период Cretaceous Early Cretaceous Late
Питание Herbivore Carnivore
Длина 10.0 m 12.3 m
Height 2.5 m 3.7 m
Вес 2.6 t 8.4 t
Год открытия 1991 1905
Место открытия La Amarga Formation, Argentina Montana, USA
Назван Leonardo Salgado & Jose Bonaparte Henry Fairfield Osborn

Size Comparison

Amargasaurus 10.0 m

about as long as 2 cars end-to-end

Tyrannosaurus Rex 12.3 m

about as long as 2 cars end-to-end

Weight Comparison

Amargasaurus 2.6 t

comparable to 2.6 small cars

Tyrannosaurus Rex 8.4 t

about the weight of 1.4 elephants

Timeline Comparison

Amargasaurus
145,0 Mya Cretaceous Early (Mesozoic) 100,5 Mya
Tyrannosaurus Rex
100,5 Mya Cretaceous Late (Mesozoic) 66,0 Mya

Diet Comparison

Amargasaurus

Herbivore

Amargasaurus was a plant-eater, feeding on vegetation like ferns, conifers, and cycads.

Tyrannosaurus Rex

Carnivore

Tyrannosaurus Rex was a meat-eating predator, hunting other animals for food.

Classification Comparison

Amargasaurus

Clade: Sauropodomorpha

Group: Sauropoda

(Lizard feet)

Tyrannosaurus Rex

Clade: Theropoda

Group: Tyrannosauridae

(Tyrant lizards)

Did You Know?

💡

Tyrannosaurus Rex weighed roughly 3x more than Amargasaurus.

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Amargasaurus was a herbivore while Tyrannosaurus Rex was a carnivore.

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Amargasaurus lived during the Cretaceous Early while Tyrannosaurus Rex lived during the Cretaceous Late, separated by roughly 0 million years.

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Tyrannosaurus Rex was discovered 86 years earlier, in 1905.

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Amargasaurus belonged to Sauropoda while Tyrannosaurus Rex belonged to Tyrannosauridae.

Compare With Other Dinosaurs

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Carnivore vs Carnivore

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

Amargasaurus

Amargasaurus cazaui

10.0m long, 2.5m tall, 2.6t · Cretaceous Early

Tyrannosaurus Rex

Tyrannosaurus rex

12.3m long, 3.7m tall, 8.4t · Cretaceous Late

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