Genus: Dubreuillosaurus ALLAIN, 2005 (published 2006)
Etymology: In honor of Dubreuil family, who found the specimen in 1994, and Greek, sauros, "lizard."

Species: valesdunensis (ALLAIN, 2002) ALLIAN, 2005 (published 2006)
= Poekilopleuron? valesdunensis ALLIAN, 2002
Etymology: In reference to "Val-es-Dunes", the Norman name of a battlefield near Conteville where the rebellious Bessin and Cotentin barons were defeated by William the Conqueror in 1047, and Latin, ensis, "from."

Holotype: MNHN 1988-13

Locality: Conteville, Calvados Department, Normandy, France.

Horizon: 'Calcaire de Caen' Formation.

Biostratigraphy: Progracilis progracilis zone.

Age: Middle Bathonian Stage, Lower Dogger Epoch, Middle Jurassic.

Material: Nearly complete skull and associated postcranial material including cervical, dorsal, sacral, and caudal vertebrae, ribs, chevron bones, sacpula coracoid, femur, fibula, and fifth metatarsal.