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Irritator

© Andrey Atuchin

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Information

Irritator was quite like Spinosaurus. It is known only from a skull, so the sail is a guess.

The type species, Irritator challengeri was named after Professor Challenger from Arthur Conan Doyle's novel 'The Lost World', published in 1912.

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Fact file

Pronounced
irr-it-ate-or
Meaning of name
irritator
Length
  6.5m
Diet
carnivorous
When it lived
Early Cretaceous
(112 - 99 million years ago)
Found in
Brazil

Taxonomic details

Taxonomy
Dinosauria, Saurischia, Theropoda, Neotherapoda, Tetanurae, Spinosauroidea, Spinosauridae, Spinosaurinae, Irritator
Named by
Martill, Cruickshank, Frey, Small and Clarke (1996)
Type species
challengeri