After Meyer, 1978, Fischer, 1989, Rasmussen, 1989, Nowak, 1991 and McKenna & Bell, 1997
<==o †Geniohyinae Andrews, 1906 [non Matsumoto, 1926] |-- †Seggeurius amourensis Crochet, 1986 `--o †Geniohyus Andrews, 1904a |-- †G. magnus (Andrews, 1904a) [Saghatherium magnus Andrews, 1904a] `--+-- †G. mirus Andrews, 1904a |-- †G. diphycus Matsumoto, 1926 `-- †G. sp. indet. [Bugti, Pakistan]
Reference(s):
- Fischer, M. S., 1989: Hyracoids, the sister-group of perissodactyls. 37-56
in Prothero, D. R. & Schoch, R. M., (eds.) 1989: The Evolution of Perissodactyls.
–Oxford University Press, New York, New York & Oxford, England, 1989, ix-537 - McKenna, M. C. & Bell, S. K., (eds.) 1997: Classification of mammals – above the species level.
–Columbia University Press, New York, 1997, xii-631 - Meyer, G. E., 1978: Hyracoidea. 284-314.
in Maglio, V. J. & Cooke, H. B. S., (eds.) 1978: Evolution of African Mammals.
–Harvard University Press, Cambridge, Massachusetts, London, England, 1978, xiv-641 - Rasmussen, D. T., 1989: The evolution of the Hyracoidea: A review of the fossil evidence. 57-78.
in Prothero, D. R. & Schoch, R. M., (eds.) 1989: The Evolution of Perissodactyls.
–Oxford University Press, New York, New York & Oxford, England, 1989, ix-537 - Rasmussen, D. T. & Simons, E. L., 1988: New Oligocene hyracoids from Egypt.
–Journal of Vertebrate Paleontology: Vol. 8, #1, pp. 67-83