Bruce J. McFadden, "Fossil Horses - Evidence for Evolution" (2005)

"Science" 18 March 2005, vol. 307, s. 1728-1730. --- Abstract --- The modern day horse Equus is a beloved icon but also, thanks to its many fossil relatives, has proved valuable for understanding macroevolution (that is, the long-term evolution of species). In his Perspective, MacFadden discusses fossil evidence supporting a branching family tree for the Family Equidae and points out why horse fossils have been beneficial for understanding evolution.