 It has been suggested that "Uromastyx sensu lato" along with the sister group of "Leiolepis" may be considered as a distinct family, the Uromastycidae, however this is not widely accepted as the rest of the Agamidae do not form a clear sister group.The type locality for "S. hardwickii" is Kanauj district in Uttar Pradesh.It inhabits the dry desert tracts of the northern half of the plains of India into Pakistan.