Name: Dubreuillosaurus ‭(‬Dunreuil's lizard‭)‬.
Phonetic: Doo-brai-ul-o-sore-us.
Named By: Allain‭ ‬-‭ ‬2005.
Synonyms: Poekilopleuron valesdunensis.
Classification: Chordata,‭ ‬Reptilia,‭ ‬Dinosauria,‭ ‬Saurischia,‭ ‬Theropoda,‭ ‬Megalosauridae,‭ ‬Megalosaurinae.
Species: D.‭ ‬valesdunensis‭ (‬type‭)‬.
Diet: Carnivore/Piscivore.
Size: Holotype individual estimated to be about 5 meters long, but this individual is thought to be a juvenile/subadult. Adult size speculated to be about 9 meters long.
Known locations: France‭ ‬-‭ ‬Caen Formation.
Time period: Bathonian of the Jurassic.
Fossil representation: Partial skeleton.

       Discovered in‭ ‬1994‭ ‬and originally classed as a species of Poekilopleuron,‭ ‬Dubreuillosaurus was placed into its own genus in‭ ‬2005‭ ‬on the basis of differences of the post cranial remains of the two.‭ ‬Dubreuillosaurus itself was a large carnivore for the Jurassic,‭ ‬and would have probably been similar to the much more famous Megalosaurus.
       Because Dubreuillosaurus like other megalosaurids was found in marine sediment it has been suggested as being a coastal animal.‭ ‬While it may have fed upon fish caught in tidal pools,‭ ‬it may have also been a beach comber,‭ ‬perhaps scavenging the bodies of dead marine reptiles washed ashore.‭ ‬This lifestyle is of course speculation based upon circumstantial evidence,‭ ‬but unless remains of an inland individual are recovered,‭ ‬it remains a good starting area for reconstructing the living animal.‭ ‬The skull of Dubreuillosaurus does lend some support to the piscivorous fish hunting lifestyle as it is proportionately long,‭ ‬something that would give Dubreuillosaurus added reach to snatch a fish from the water.

Further reading
- Discovery of a megalosaur (dinosauria, Theropoda) in the Middle Bathonian of Normandy (France) and its implications for the phylogeny of basal Tetanurae. - Journal of Vertebrate Paleontology. 22 (3): 548–563. - R. Allain - 2002.
- The postcranial anatomy of the megalosaur Dubreuillosaurus valesdunensis (Dinosauria: Theropoda) from the Middle Jurassic of Normandy, France. - Journal of Vertebrate Paleontology 25(4):850-858. - R. Allain - 2005.


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