Technosaurus is based on TTUP P9021, which initially consisted of a premaxillae (tip of the upper jaw), two lower jaw pieces, a back vertebra, and an astragalus. Technosaurus and its type species, T. smalli, were named by Sankar Chatterjee in 1984. He described it as a fabrosaurid,[1] a clade of small early ornithischians now considered to have been an artificial grouping.[2] Material from the quarry where P9021 was found is disassociated and comes from a variety of Late Triassic animals,[3] which would prove problematic.