Citovaná a použitá literatura:

CUVIER, Georges. Recherches sur les ossemens fossiles 10. Paris, 1825, Tabl. vol. 1, 2.
EDINGER, Tilly. Die fossilen Gehirne. Abteilung Zeitschrift für die gesamte Anatomie, 1929.
EDINGER, Tilly. Über Gehirne tertiärer Sirenia Ägyptens und M-Europas sowie der rezenten Seekühe. Abhandlungen der Bayerischen Akademie der Wissenschaften, 1933.
EDINGER, Tilly. Evolution of the horse brain. Memoirs of the Geological Society of America, 1948, vol. 25.
MARSH, Othniel Charles. Notice of new equine mammals from the Tertiary formation. American Journal of Science, 1874, 3.7: 247-258.
OSBORN, Henry Fairfield. Equidae of the Oligocene, Miocene, and Pliocene of North America, iconographic type revision. Memoirs of the American Museum of Natural History, 1918, 2: 1-330.
SIMPSON, George Gaylord, et al. Horses. The story of the Horse family in the modern World and through sixty million years of history. Oxford University Press, 1951.
VLČEK, Emanuel. Neandertaler der Tschechoslowakei. [Illustr.]. Academia, Verlag der Tschechoslowakischen Akademie der Wissenschaften, 1969.

The example of the phylogeny of the mammalian group of horses (Equidae, Perissodactyla, Tilly Edinger 1948) shows the im­portance of the general brain evolution in one good recorded lineage during the Tertiary of North America.