Cracraft, Joel. 1976. "The Species of Moas (Aves: Dinornithidae)." In Collected papers in avian paleontology honoring the 90th birthday of Alexander Wetmore. 189–205. Washington, D.C.: Smithsonian Institution Press. In Smithsonian Contributions to Paleobiology, 27. https://doi.org/10.5479/si.00810266.27.189.