SEXUAL DIMORPHISM IN RAMAPITHECINAE
SEXUAL DIMORPHISM IN RAMAPITHECINAE
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DOI：
10.1073/pnas.79.2.209
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发表时间：
1982-01-01
期刊：
影响因子：
--
通讯作者：
KAY, RF
中科院分区：
文献类型：
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作者：
KAY, RF
Ramapithecinae是一个灭绝的，主要是中新世的类人猿群，包括Sivapithecus属和Gigantopithecus属。Ouranopithecus和Ramapithecus是其他包括的属，在这里被认为是无效的。从进化的角度来看，拉马猿人属于人科动物，尽管在解剖学的大多数方面，他们仍然非常原始或像猿。中新世罗玛猿在犬的大小上显示出减少的两性二态性。在这方面，他们类似于上新世/近代的原始人，而不是现存的类人猿（它们有高度二态的犬科动物）。犬体型二型性的减少是一个重要的共同衍生特征，表明了拉马猿人的原始人地位。在现存的类人猿中，在一夫一妻制的社会结构和低犬类二型性之间观察到显著的关联。这支持了腊马猿可能是一夫一妻制的推论。
The Ramapithecinae are an extinct, mainly Miocene group of hominoids comprising the genera Sivapithecus and Gigantopithecus. Ouranopithecus and Ramapithecus are other included genera, here regarded as invalid. Cladistically, ramapithecines are hominid, although, in most aspects of their anatomy, they remain very primitive or ape-like. Miocene ramapithecines show reduced sexual dimorphism in canine size. In this respect they resemble Pliocene/Recent hominids, not extant great apes (which have highly dimorphic canines). Reduced dimorphism in canine size is an important shared derived feature indicating the hominid status of ramapitheclnes. Among living anthropoids, a significant association was observed between a monogamous social structure and low canine dimorphism. This supports the inference that ramapithecines may have been monogamous.