Corythosaurus vs Iguanodon

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

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Side-by-Side Comparison

Property Corythosaurus Iguanodon
Scientific Name Corythosaurus casuarius Iguanodon bernissartensis
Classification Hadrosauridae Ornithischia
Period Cretaceous Late Cretaceous Early
Diet Herbivore Herbivore
Length 9.0 m 10.0 m
Height 2.7 m 3.0 m
Weight 3.8 t 3.4 t
Discovery Year 1914 1825
Discovery Location Red Deer River, Alberta, Canada Sussex, England
Named By Barnum Brown Gideon Mantell
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Size Comparison

Corythosaurus 9.0 m

roughly the length of a large SUV

Iguanodon 10.0 m

about as long as 2 cars end-to-end

Weight Comparison

Corythosaurus 3.8 t

comparable to 3.8 small cars

Iguanodon 3.4 t

comparable to 3.4 small cars

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Timeline Comparison

Corythosaurus
100.5 Mya Cretaceous Late (Mesozoic) 66.0 Mya
Iguanodon
145.0 Mya Cretaceous Early (Mesozoic) 100.5 Mya
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Diet Comparison

Corythosaurus

Herbivore

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

Iguanodon

Herbivore

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

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Classification Comparison

Corythosaurus

Clade: Ornithischia

Group: Hadrosauridae

(Duck-billed dinosaurs)

Iguanodon

Group: Ornithischia

(Bird-hipped dinosaurs)

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Did You Know?

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Both Corythosaurus and Iguanodon were herbivores.

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Corythosaurus lived during the Cretaceous Late while Iguanodon lived during the Cretaceous Early, separated by roughly 79 million years.

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Iguanodon was discovered 89 years earlier, in 1825.

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Corythosaurus belonged to Hadrosauridae while Iguanodon belonged to Ornithischia.

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