 Most of these fossils, earlier named as "Megalosaurus pannoniensis", "Megalosaurus hungaricus" and "Megalosaurus lonzeensis", he considered to be "nomina dubia" because of the paucity of the material.However, when in the collection of the University of Lyon he discovered some theropod bones once excavated by an unknown collector at an escarpment of a place named "Lambeau du Beausset", in the "syncline of Le Beausset" (in French