	In 1959, Albert-Félix de Lapparent excavated fossils near Oued Timmersöi, west of In Tedreft in the Agadez desert. Among the finds were the remains of a theropod. In 1960, de Lapparent, based on these, named a second species of the genus "Elaphrosaurus", "E. gautieri". The specific name honours François Gautier, the discoverer of the type locality.