Technosaurus

For about 20 years after its description, it was thought to be a basal ornithischian dinosaur, but better remains of other Triassic archosaurs have cast doubt on this interpretation.

[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.

[2] It was further reviewed in the light of new remains that spurred reevaluation of purported Triassic dinosaurs, particularly ornithischians named from tooth or jaw material.

Irmis et al. (2007) agreed with the removal of the vertebra and astragalus, but found no characteristics that were unambiguously dinosaurian in the skull fragments.

[3] These authors would later restate their case, concluding that Technosaurus, defined only by the premaxilla and non-Shuvosaurus lower jaw fragment, was a valid, diagnostic genus, but could not be definitely classified beyond Archosauriformes incertae sedis, and was unlikely to be either an ornithischian or sauropodomorph dinosaur.