This figure is of the oldest skull of a higher primate of modern aspect or euprimate. The genus Teilhardina has been found in early Eocene deposits of Europe, Asia, and North America. This particular skull IVPP V12357 comes from the earliest Eocene of the Hengyang Basin, China. This species appears to have existed close to the common origin of the higher primates and probably stands as a sister group to the earliest adapoid prosimians. Note that the metopic suture of the frontal appears to be unfused and that the orbits, although large, are not very convergent. Note also from the side view (b) that the orbit is also not very frontated. Frontation is when the superior margin of the orbit is rotated upward and forward so that it lies vertically above the lower margin as seen in humans and other modern anthropoids. Because the brain of Teilhardina is small compared to the facial part of the skull, the orbits are still oriented as in prosimians and there is no postorbital closure. The authors of this new species T. asiatica lies close to the base of the omomyid tarsier anthropoid clade. They consider Teilhardina to be a diurnal, visually oriented predator, thus opting for the visual predation hypothesis. They also contend that its lifestyle could not have supplanted that of the seemingly frugiverous carpolestids. Teilhardina, in terms of its tooth crown anatomy, is not very different from some of the smaller adapid primates, such as Periconodon and Anchomomys.