Attributes / relations provided by
♦ ¹Addax nasomaculatus, Paul R. Krausman and Anne L. Casey, MAMMALIAN SPECIES No. 807, pp. 1-4 (2007)
♦ ²Antidorcas marsupialis, James W. Cain III, Paul R. Krausman, and Heather L. Germaine, MAMMALIAN SPECIES No. 753, pp. 1–7 (2004)
♦ ³Kori Bustard Species Survival Plan (Ardeotis kori) Husbandry Manual, Sara Hallager, Jeanette Boylan, September 2004
♦ ⁴Equus grevyi, C. S. Churcher, MAMMALIAN SPECIES No. 453, pp. 1-9 (1993)
♦ ⁵Equus zebra, B. L. Penzhorn, MAMMALIAN SPECIES No. 314, pp. 1-7 (1988)
♦ ⁶Orycteropus afer, Jeheskel Shoshani, Corey A. Goldman, and J. G. M. Thewissen, MAMMALIAN SPECIES No. 300, pp. 1-8 (1988)
♦ ⁷Taurotragus oryx, Lindsay A. Pappas, MAMMALIAN SPECIES No. 689, pp. 1–5 (2002)