Butler Richard J.,Smith Roger M. H., and Norman David B. (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. Vol. 274, no. 1621, pp. 2041-2046. DOI:10.1098/rspb.2007.0367http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2275175/
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ncbi.nlm.nih.gov
Butler Richard J.,Smith Roger M. H., and Norman David B. (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. Vol. 274, no. 1621, pp. 2041-2046. DOI:10.1098/rspb.2007.0367http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2275175/