Argentinosaurus vs Maiasaura

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

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Side-by-Side Comparison

Propriété Argentinosaurus Maiasaura
Nom scientifique Argentinosaurus huinculensis Maiasaura peeblesorum
Classification Sauropoda Hadrosauridae
Période Cretaceous Late Cretaceous Late
Alimentation Herbivore Herbivore
Longueur 35.0 m 9.0 m
Height 12.0 m 2.3 m
Poids 70.0 t 4.0 t
Année de découverte 1993 1979
Lieu de découverte Neuquen Province, Argentina Two Medicine Formation, Montana, USA
Nommé par Jose Bonaparte & Rodolfo Coria Jack Horner & Robert Makela
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Size Comparison

Argentinosaurus 35.0 m

as long as 3 school buses

Maiasaura 9.0 m

roughly the length of a large SUV

Weight Comparison

Argentinosaurus 70.0 t

heavier than 12 African elephants

Maiasaura 4.0 t

comparable to 4.0 small cars

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Timeline Comparison

Argentinosaurus
100,5 Mya Cretaceous Late (Mesozoic) 66,0 Mya
Maiasaura
100,5 Mya Cretaceous Late (Mesozoic) 66,0 Mya

Argentinosaurus and Maiasaura both lived during the Cretaceous Late period and may have shared the same habitats.

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Diet Comparison

Argentinosaurus

Herbivore

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

Maiasaura

Herbivore

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

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Classification Comparison

Argentinosaurus

Clade: Sauropodomorpha

Group: Sauropoda

(Lizard feet)

Maiasaura

Clade: Ornithischia

Group: Hadrosauridae

(Duck-billed dinosaurs)

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Did You Know?

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Argentinosaurus was about 3.9x longer than Maiasaura.

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Argentinosaurus weighed roughly 18x more than Maiasaura.

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Both Argentinosaurus and Maiasaura were herbivores.

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Both dinosaurs lived during the Cretaceous Late period and may have coexisted.

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Maiasaura was discovered 14 years earlier, in 1979.

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Argentinosaurus belonged to Sauropoda while Maiasaura belonged to Hadrosauridae.

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