Coppens Y
C R Acad Hebd Seances Acad Sci D. 1977 Nov 28;285(15):1299-302.
Recent discoveries in Africa, in Asia and in Europe of new fossils attributed to the Ramapithecinae and/or to the Australopithecinae seem to point out the monocuspid origin of Man's first lower premolar the bicuspidy of the Gigantopithecidae, the Oreopithecidae' and the Hominidae' first lower premolar, reached at different geological ages, give an example of parallel evolution.
最近在非洲、亚洲和欧洲发现了一些新化石，这些化石被归为拉玛古猿亚科和/或南方古猿亚科。这些发现似乎指出了人类第一颗下前磨牙的单尖起源，而巨猿科、奥瑞猿科和人科第一颗下前磨牙的双尖形态是在不同地质年代形成的，这是平行进化的一个例子。
