The type species, "Genusaurus sisteronis", is based on a partial skeleton, and was described by Accarie, Beaudoin, Dejax, Fries, Michard, and Taquet in 1995.
The type species, "Genusaurus sisteronis", is the only known species. It is based on a partial skeleton found in 1984-1986 and described by Accarie, Beaudoin, Dejax, Fries, Michard, and Taquet in 1995.