Richard J. Butler, Roger M. H. Smith, David B. Norman. A primitive ornithischian dinosaur from the Late Triassic of South Africa, and the early evolution and diversification of Ornithischia. „Proceedings of the Royal Society B: Biological Sciences”. 274 (1621), s. 2041–2046, 2007. DOI: 10.1098/rspb.2007.0367. (ang.).
Richard J. Butler, Paul Upchurch, David B. Norman. The phylogeny of the ornithischian dinosaurs. „Journal of Systematic Palaeontology”. 6, s. 1–40, 2008. DOI: 10.1017/S1477201907002271. (ang.).
