Pilbeam D, Rose M D, Barry J C, Shah S M
Department of Anthropology, Peabody Museum, Harvard University, Cambridge, Massachusetts 02138.
Nature. 1990 Nov 15;348(6298):237-9. doi: 10.1038/348237a0.
New humeri of two species of the Miocene hominoid Sivapithecus are described from near Chinji in Pakistan from between approximately 9 and 11 Myr ago. Sivapithecus, a middle and late Miocene hominoid from Turkey and Indo-Pakistan, is overall unlike any living hominoid, although facial-palatal similarities to the extant orangoutan, Pongo, have been used to support a hypothesis of close relationship. Living hominoids have postcranial similarities assumed to be shared derived, among them features of the proximal humerus. However, the new Sivapithecus proximal humeri differ from those of living hominoids, supporting an alternative hypothesis in which Sivapithecus and Pongo are not closely related. It is not clear how to choose between these incompatible hypotheses.
在巴基斯坦钦吉附近发现了两种中新世类人猿西瓦古猿的新肱骨化石，这些化石距今约900万至1100万年。西瓦古猿是一种来自土耳其和印度 - 巴基斯坦的中新世中晚期类人猿，总体上与现存的任何类人猿都不同，尽管其面部 - 腭部与现存的红毛猩猩彭戈有相似之处，这曾被用来支持两者存在密切关系的假说。现存类人猿的颅后结构有一些被认为是共同衍生的相似特征，其中包括近端肱骨的特征。然而，新发现的西瓦古猿近端肱骨与现存类人猿的不同，这支持了另一种假说，即西瓦古猿和彭戈没有密切关系。目前尚不清楚如何在这些相互矛盾的假说之间做出选择。
