Fossil range: Middle Jurassic
Conservation status
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Sauropsida
Superorder: Dinosauria
Order: Ornithischia
Suborder: Ornithopoda
Infraorder: Iguanodontia
Family: Dryosauridae
Genus: Callovosaurus

Callovosaurus ("Callovian lizard") is a primitive Iguanodont dinosaur from the mid-Jurassic period in England. The diet of Callovosaurus, like that of other Iguanodonts, was plant material. Among its contemporaries were Lexovisaurus and Cetiosaurus. Predators of the same time period included Eustreptospondylus and Megalosaurus. Callovosaurus probably traveled in herds (based on behaviors of more well known ornithopods like Iguanodon) to avoid being attacked by these predators.

The type species, C. leedsi, was first described by Lydekker in 1889 and redescribed by Galton in 1980.


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