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1999年,在印度西部的纳尔玛达(Narmada)河的一条支流——奥尔桑(Orsang)河谷发现了一具孤立的智人头骨,这对于了解印度人类进化历史和南亚直立人与最古老的亚洲智人(或AMH,解剖学上现代的人)之间的联系有着重要的意义。化石是在古老的河流沉积物中发现的。对主体沉积和颅内沉积物的红外光释光(IRSL)测年结果显示,其年代为3—5万年。然而,对化石的直接测年(放射性碳加速器质谱测年AMS)结果表明,其年代最小为4981—5579年前。头骨被归类为圆颅型智人。头骨上最引人注意的特征是颅外有亚洲直立人头后部很发达的角圆枕。头骨最宽处在下部(颞骨)如直立人,这样的情况从来不见于智人。这可能是由于乳突的气窦化而形成的。乳突上脊发育,从破损的眉间区(20mm)可以看到很宽的额窦。所有这些粗壮的特征都表明Orsang头骨和晚期亚洲直立人之间具有遗传连续性。
In 1999 an isolated Homo sapiens skull was found in the Orsang valley, a tributary of the Narmada River in western India, which is a source of insight into the evolutionary history of humanity in India and the rise and rise of the South Asian upright The connection between the ancient Asian Homo sapiens (or AMH, anatomically modern person) is of great importance. Fossils are found in ancient river sediments. Infrared light-emitting (IRSL) dating of body deposits and intracranial deposits showed that the age was 3-5 million years. However, the direct dating of fossils (AMS dating by radiocarbon accelerator) showed that the minimum age was 4981-579 years ago. The skull is classified as a cranial Homo sapiens. The most striking feature of the skull is the extracranial occipital horn that is well developed behind the head of an Asian upright human. The widest part of the skull is in the lower part (temporal bone), such as Homo erectus, which is never seen in Homo sapiens. This may be due to mastoid sinus sinuses formed. Mastoid ridge development, from the damaged area of the eyebrows (20mm) can be seen a very wide frontal sinus. All of these sturdy features indicate a genetic continuity between the Orsang skull and late Asian Homo erectus.