Apatosaurus vs Argentinosaurus

A detailed side-by-side comparison of Apatosaurus and Argentinosaurus, covering size, diet, classification, geologic period, and discovery history.

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Side-by-Side Comparison

الخاصية Apatosaurus Argentinosaurus
الاسم العلمي Apatosaurus ajax Argentinosaurus huinculensis
التصنيف Sauropoda Sauropoda
الحقبة Jurassic Late Cretaceous Late
النظام الغذائي Herbivore Herbivore
الطول 22.0 m 35.0 m
Height 4.5 m 12.0 m
الوزن 22.7 t 70.0 t
سنة الاكتشاف 1877 1993
موقع الاكتشاف Morrison Formation, Colorado, USA Neuquen Province, Argentina
سُمي بواسطة Othniel Charles Marsh Jose Bonaparte & Rodolfo Coria
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Size Comparison

Apatosaurus 22.0 m

about as long as 4 cars end-to-end

Argentinosaurus 35.0 m

as long as 3 school buses

Weight Comparison

Apatosaurus 22.7 t

about the weight of 3.8 elephants

Argentinosaurus 70.0 t

heavier than 12 African elephants

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Timeline Comparison

Apatosaurus
161,5 Mya Jurassic Late (Mesozoic) 145,0 Mya
Argentinosaurus
100,5 Mya Cretaceous Late (Mesozoic) 66,0 Mya
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Diet Comparison

Apatosaurus

Herbivore

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

Argentinosaurus

Herbivore

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

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Classification Comparison

Apatosaurus

Clade: Sauropodomorpha

Group: Sauropoda

(Lizard feet)

Argentinosaurus

Clade: Sauropodomorpha

Group: Sauropoda

(Lizard feet)

Both dinosaurs share a common ancestor within the Sauropoda clade.

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Did You Know?

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Argentinosaurus was about 1.6x longer than Apatosaurus.

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Argentinosaurus weighed roughly 3x more than Apatosaurus.

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Both Apatosaurus and Argentinosaurus were herbivores.

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Apatosaurus lived during the Jurassic Late while Argentinosaurus lived during the Cretaceous Late, separated by roughly 44 million years.

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Apatosaurus was discovered 116 years earlier, in 1877.

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Both belong to the Sauropoda clade, making them relatively close relatives.

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Compare With Other Dinosaurs

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