Wednesday , December 1 2021

Stone Tools Found in Algeria Provided Evidence on Human Origins throughout Africa



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In 1992, at the Ain Boucherit archaeological excavation site on the northeast high Algiers plateau, a collection of prehistoric stone tools and butchers animal bones was discovered and now belongs to 2.4 million years ago. This dating is a direct challenge to the evolutionary paradigm of eastern Africa, where the east of Africa is approximately the same age as the oldest known vehicles in Ethiopia, 2.6 million years ago, with eastern Africa as the ine cradle of the cradle Bu. reader.

Research published in the journal Science, and in an article Nature Ine The oldest known stone instrument technology, known as Oldowan, is believed to have emerged in East Africa about 2.6 million years ago and then spread to the continent. Afrika But this new discovery suggests that vehicle production may have been oloj ejected “. Independently in different regions of Africa. "

A reconstructed skull of Australopithecus garhi, one of the species that uses Oldowan-like stone tools. (Ji-Elle / CC BY SA 3.0)

A reconstructed skull of Australopithecus garhi, one of the species that uses Oldowan-like stone tools. (Ji-Elle / CC BY SA 3.0)

Multiple Origin Scenario for Humanity?

Archaeologists report Science Ik Typical examples of the Oldowan stone tools known in East Africa s show that the tools kesim have emerged near the fossilized animal bones from old African crocodiles, elephants and hippopotamuses taş and archaeologists are thinking about it. there may be evidence of meat food. "

Oldowan artifacts (1 and 9), including unifacial cores on limestone; bifacial core made of limestone (10) and flint (2); polygonal nuclei on limestone (11 and 12); subspherical core on limestone (3); flakes (7, 16 and 17) and all flakes on limestone (4, 5, 6, 13 and 14); flint and retouched parts (8 and 15). (Sahnouni, M. et al.)

Oldowan artifacts (1 and 9), including unifacial cores on limestone; bifacial core made of limestone (10) and flint (2); polygonal nuclei on limestone (11 and 12); subspherical core on limestone (3); flakes (7, 16 and 17) and all flakes on limestone (4, 5, 6, 13 and 14); flint and retouched parts (8 and 15). ( Sahnouni, M. and friends .)

These new findings suggest that living houses in North Africa lived 600,000 years ago, and according to an article Independent It also means that ”human ancestors have walked like humans before human beings insan. According to Professor Mohamed Sahnouni of the Spanish National Research Center for Human Evolution, Spain, which pioneered the research, n A hypothesis is that our early ancestors carried stones quickly. Vehicles with them in East Africa and other regions: First, a deki multi-source scenario ür where the first hominids produced and used vehicles in both eastern and northern Africa. Lı lı Evidence from Algeria shows that humanity does not have a cradle. Professor Sahnouni was restricted to Africa only. Rather, the entire African continent was the cradle of humanity. Daha

Battle for the Planet of the Apes

“But who made the tools?“ Asks for an article New Scientist . Siz There is no human fossil in Ain Boucherit, so the vehicle manufacturer is unidentified. The evolution of Homin was the flux 2.4 million years ago. Successful early hominins including Australopithecusbegan to disappear and early species Homo U The Algerian tools were suspected to have been made by one of these early stages, u Professor Sahnouni said. Homo type. “If I had a staff and I had to choose one, that would be me.“ Professor Jessica Thompson of Emory University in Atlanta, Georgia, told reporters that she did not participate in the study. D Select. "

The original upper skull (mandible and upper tooth) of the 2.1 million-year-old Australopithecus africanus specimen, discovered in South Africa. (José Braga; Didier Descouens / CC BY SA 4.0)

The original upper skull (mandible and upper tooth) of the 2.1 million-year-old Australopithecus africanus specimen, discovered in South Africa. (José Braga; Didier Descouens / CC BY SA 4.0)

At the same time, however, there is also Professor Thompson, who has some degree of suspicion about some of the claims made by scientists. For example, while acknowledging that stones are actually tools, tal they are not sure that the animal bones are covered at the intersection points Örneğin. natural processes can scratch the surface of the bones in a similar way. Üstlen Thompson also objected to the dating of stone tools: çünkü They may not be 2.4 million years old, because it takes over land and sediment in Ain. The Boucherit has accumulated at a constant rate. "

Evidence of homin activity from Ain Boucherit faunal communities. (A and B) SEM micrograph detail (B) with slicing mark on medium-sized bovid humerus shaft (A). (C and D) SEM micrograph detail (D) labeled plaid calcaneum (C). (E) Hammerstone medium long bone percussion. (F) Bone flake. (G) Equal tibia showing the cortical percussion indentation. (Sahnouni, M. et al.)

Evidence of homin activity from Ain Boucherit faunal communities. (A and B) SEM micrograph detail (B) with slicing mark on medium-sized bovid humerus shaft (A). (C and D) SEM micrograph detail (D) labeled plaid calcaneum (C). (E) Hammerstone medium long bone percussion. (F) Bone flake. (G) Equal tibia showing cortical percussion indentation. ( Sahnouni, M. and friends )

The signs in the bones, whether natural or not, will only show time, but Professor Sahnouni and his colleague Mathieu Duval wrote in a joint article: Africa and the continent. "

Top Image: A new excavated Oldowan stone tool core in Ain Boucherit, Algeria. Source: M. Sahnouni

By Ashley Cowie

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