Iguanodon vs Maiasaura

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

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Side-by-Side Comparison

Properti Iguanodon Maiasaura
Nama Ilmiah Iguanodon bernissartensis Maiasaura peeblesorum
Klasifikasi Ornithischia Hadrosauridae
Periode Cretaceous Early Cretaceous Late
Diet Herbivore Herbivore
Panjang 10.0 m 9.0 m
Height 3.0 m 2.3 m
Berat 3.4 t 4.0 t
Tahun Penemuan 1825 1979
Lokasi Penemuan Sussex, England Two Medicine Formation, Montana, USA
Dinamai Oleh Gideon Mantell Jack Horner & Robert Makela
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Size Comparison

Iguanodon 10.0 m

about as long as 2 cars end-to-end

Maiasaura 9.0 m

roughly the length of a large SUV

Weight Comparison

Iguanodon 3.4 t

comparable to 3.4 small cars

Maiasaura 4.0 t

comparable to 4.0 small cars

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Timeline Comparison

Iguanodon
145,0 Mya Cretaceous Early (Mesozoic) 100,5 Mya
Maiasaura
100,5 Mya Cretaceous Late (Mesozoic) 66,0 Mya
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Diet Comparison

Iguanodon

Herbivore

Iguanodon 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

Iguanodon

Group: Ornithischia

(Bird-hipped dinosaurs)

Maiasaura

Clade: Ornithischia

Group: Hadrosauridae

(Duck-billed dinosaurs)

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Perbedaan Utama

  • Iguanodon was discovered in 1825 โ€” one of the first dinosaurs ever named; Maiasaura was described in 1979.
  • Iguanodon (10 m, ~3,400 kg) and Maiasaura (9 m, ~4,000 kg) were similar-sized herbivorous ornithopods.
  • Iguanodon had a distinctive thumb spike used for defense or food gathering; Maiasaura lacked this feature.
  • Maiasaura is celebrated for demonstrating dinosaur parental care; Iguanodon's social behavior is less well-understood.
  • Iguanodon lived in Early Cretaceous Europe; Maiasaura in Late Cretaceous North America.
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Did You Know?

💡

Both Iguanodon and Maiasaura were herbivores.

💡

Iguanodon lived during the Cretaceous Early while Maiasaura lived during the Cretaceous Late, separated by roughly 0 million years.

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Iguanodon was discovered 154 years earlier, in 1825.

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Iguanodon belonged to Ornithischia while Maiasaura belonged to Hadrosauridae.

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Compare With Other Dinosaurs

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