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Our early human ancestors left Africa and colonized Asia more than two million years ago, suggest archaeologists.
The tools were discovered by a research team led by Professor Zhaoyu Zhu of the Chinese Academy of Sciences in a locality called Shangchen in the Loess Plateau in southern China
The Most Objects Ancient ones are 2.12 million years old and 270,000 years older than the skeletal remains and stone tools of 1.85 million years old from Dmanisi, Georgia. previously the first evidence of humanity outside of Africa.
Artifacts include a notch, scrapers, pebbles, hammer stones and pointed pieces, according to the study published in the journal Nature.
was intentionally flaked. Most were made of quartzite and quartz probably from the foothills of the Qinling Mountains, 5 or 10 kilometers south of the site, and the resulting water courses.
Fragments of animal bones aged 2.12 million years were also found.
"Our discovery means that it is necessary now to reconsider the moment when the first humans left Africa," said Professor Robin Dennell of Exeter University at the University of New York. United Kingdom, who also participated in the study.
The plateau covers about 270,000 square kilometers and, over the past 2.6 million years, between 100 and 300 meters of wind dust – known as Loess – have been deposited in the area.
The 80 artefacts were found mainly in 11 different layers of fossil soils that grew in a hot, humid climate.
16 other elements were found in six layers of loess that developed in colder and drier conditions. These 17 different layers of loess and fossils were formed over a period of nearly a million years
This shows that the first types of humans occupied the Chinese Loess Plateau under different climatic conditions between 1.2 and 2.12 million years. The layers containing these stone tools have been dated by linking the magnetic properties of the layers to known and dated changes in the Earth's magnetic field.PTI
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