Butler, Richard J.; Roger M. H. Smith; David B. Norman (22 August 2007). "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): 2041–6. doi:10.1098/rspb.2007.0367. PMC 2275175. PMID 17567562.
