Abstract: A unique mammal was found from the Early Eocene of the Wutu Basin, Shandong Province, China. The upper molars of the species are similar to those of early perissodactyls in general morphology , but the m1～2 are much like those of phenacodontids in having an incomplete hypolophids , and the M3 has a hypocone with prehypocrista and posthypocrista , which is similar to that of primitive hyraxes. It is difficult to assign the new species to the order Perissodactyla or other definite orders. It seems advisable to refer the new species to“Mirorder Phenacodonta”, including Condylarthra , Perissodactyla and Hyracoidea (sensu McKenna , 1975) .