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Duriavenator is a genus of theropod dinosaur described in 2008 by Roger Benson; its finds were excavated in England. The type species is D. hesperis, formerly known as Megalosaurus hesperis.[1] Duriavenator lived during the Bajocian stage, around 170 million years ago, making it one of the oldest-known tetanurans. The genus name combines the Latin name of Dorset, Duria, with Latin for "hunter", venator.[2] This genus has also gone under the unofficial name "Walkersaurus", which is a nomen nudum.

Temporal range: Middle Jurassic, 170 Ma
Duriavenator hesperis.jpg
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Clade: Dinosauria
Order: Saurischia
Suborder: Theropoda
Family: Megalosauridae
Subfamily: Megalosaurinae
Genus: Duriavenator
Benson, 2008
D. hesperis
Binomial name
Duriavenator hesperis
(Waldman, 1974 [originally Megalosaurus])

Megalosaurus hesperis Waldman, 1974

Life restoration
Reconstruction of the skull of Duriavenator based on Eustreptospondylus, with known material shown in white


  1. ^ Waldman, M. (1974). "Megalosaurids from the Bajocian (Middle Jurassic) of Dorset" (PDF). Palaeontology. 17 (2): 325–339.
  2. ^ Benson, R.B.J. (2008). "A redescription of "Megalosaurus" hesperis (Dinosauria, Theropoda) from the Inferior Oolite (Bajocian, Middle Jurassic) of Dorset, United Kingdom". Zootaxa 1931: 57-67.