Irritator vs Suchomimus

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

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Side-by-Side Comparison

Property	Irritator	Suchomimus
Scientific Name	Irritator challengeri	Suchomimus tenerensis
Classification	Spinosauridae	Spinosauridae
Period	Cretaceous Early	Cretaceous Early
Diet	Piscivore	Piscivore
Length	8.0 m	11.0 m
Height	2.5 m	3.6 m
Weight	1.0 t	5.2 t
Discovery Year	1996	1998
Discovery Location	Santana Formation, Brazil	Elrhaz Formation, Niger
Named By	David Martill et al.	Paul Sereno et al.

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Size Comparison

Irritator 8.0 m

roughly the length of a large SUV

Suchomimus 11.0 m

about as long as 2 cars end-to-end

Weight Comparison

Irritator 1.0 t

comparable to 1.0 small cars

Suchomimus 5.2 t

about the weight of 0.9 elephants

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Timeline Comparison

Irritator

145.0 Mya Cretaceous Early (Mesozoic) 100.5 Mya

Suchomimus

145.0 Mya Cretaceous Early (Mesozoic) 100.5 Mya

Irritator and Suchomimus both lived during the Cretaceous Early period and may have shared the same habitats.

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Diet Comparison

Irritator

Piscivore

Irritator was a fish-eater, specialized in catching aquatic prey.

Suchomimus

Piscivore

Suchomimus was a fish-eater, specialized in catching aquatic prey.

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Classification Comparison

Irritator

Clade: Theropoda

Group: Spinosauridae

(Spine lizards)

Suchomimus

Clade: Theropoda

Group: Spinosauridae

(Spine lizards)

Both dinosaurs share a common ancestor within the Spinosauridae clade.

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Did You Know?

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Suchomimus weighed roughly 5x more than Irritator.

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Both Irritator and Suchomimus were piscivores.

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

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Irritator was discovered 2 years earlier, in 1996.

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

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Explore These Dinosaurs

Irritator

Irritator challengeri

8.0m long, 2.5m tall, 1.0t · Cretaceous Early

Suchomimus

Suchomimus tenerensis

11.0m long, 3.6m tall, 5.2t · Cretaceous Early

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