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Friday, July 26, 2019

Stone tools 2.6 My old in Northern India... Who made them?


Thank you NeilB for drawing my attention to this paper: The first Indo-French Prehistorical Mission in Siwaliks and the discovery of anthropic activities at 2.6 million years, Anne Dambricourt Malasse, Comptes Rendus Palevol, Volume 15, Issues 3–4, February–March 2016, Pages 281-294, https://doi.org/10.1016/j.crpv.2015.12.001.


It is quite controversial to say the least. It discusses some remains and stone tools 2.6 Million years old found at the foot of the Himalayas in NW India, in the village of Masol


I will quote some parts of this paper:


"In the African paradigm, the most probable cradle of Homo genus is the north of the Rift Valley, rather than Central and South Africa.
The first Asian paradigm is interesting. The comparison between the geographical distribution of fossil apes and the oldest human occupations including Riwat, shows clearly a superposition (Fig. 2). The partial mandible of Longgupo was first assigned to a descendant from Homo habilis, then, a dozen of years later, to a "mystery ape". This revision arose from the paradigm of “Out of Africa” dating from 1.8 Ma; "such classifications are always open to interpretation. But I am now convinced that the Longgupo fossil and others like it do not represent a pre-erectus human, but rather one or more mystery apes indigenous to southeast Asia's Pleistocene primal forest. In contrast, H. erectus arrived in Asia about 1.6 million years ago." (Ciochon, 2009)."


The tools found at the site (see image below -from Dambricourt's paper) are chopped pebbles or cobbles similar to those of the Oldowan stone technology, the oldest known stone tools:


The 2.6 MY old tools.

The paper concludes: "These hominines were familiar with an environment regularly exposed to monsoon and floods in the plain, where Himalayan rivers provided carrion for meat, grease, marrow and also raw material for the stone tools. Insofar as, on the ground, there is no hard stone other than the quartzite pebbles with a mean size of 15 cm, hominins likely used the direct percussion that gives an idea of their muscle power. The hominins of Masol had a good anatomical knowledge of the carrion as shown by the marks on the bones, which reveal organized, agile and precise gestures. The discovery of anthropic scavenging activity in Siwaliks dating from 2.6 Ma raises now the question of the geographic and phyletic origins of these hominines."


I am not so positive about an Asian origin of these hominins, but they may represent an early dispersal out of Africa of Australopithecines or Homo habilis, earlier than formerly believed.



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