Quo vadis eohippus? The systematics and taxonomy of the early Eocene equids (Perissodactyla).Published in:Zoological Journal of the Linnean Society, 2002, v. 134, n. 2, p. 141, doi. 10.1046/j.1096-3642.2002.00005.xBy:FROEHLICH, DAVID J.Publication type:Article