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Humans arrived in Asia earlier than thought: Study

Press Trust of India  |  Beijing 

Our earliest human ancestors left and colonised over two million years ago, and bones discovered in by archaeologists suggest.

The tools were discovered by a research team led by from the at a locality called Shangchen in the southern Chinese

The oldest artefacts are 2.12 million years old, and are 270,000 years older than the 1.85 million-year-old skeletal remains and from Dmanisi, Georgia, which were previously the earliest evidence of humanity outside

The artefacts include a notch, scrapers, cobble, hammer stones and pointed pieces, according to the study published in

All show signs of use - the stone had been intentionally flaked. Most were made of quartzite and quartz that probably came from the foothills of the 5 to 10 kilometres to the south of the site, and the streams flowing from them.

Fragments of animal bones 2.12 million years old were also found.

"Our discovery means it is necessary now to reconsider the timing of when early humans left Africa," said from the in the UK, who was also involved in the study.

The Chinese covers about 270,000 square kilometres, and during the past 2.6 million years between 100 and 300 metres of wind-blown dust - known as loess - has been deposited in the area.

The 80 stone artefacts were found predominantly in 11 different layers of fossil soils which developed in a warm and wet climate.

A further 16 items were found in six layers of loess that developed under colder and drier conditions. These 17 different layers of loess and fossil soils were formed during a period spanning almost a million years.

This shows that early types of humans occupied the Chinese under different climatic conditions between 1.2 and 2.12 million years ago.

The layers containing these were dated by linking the magnetic properties of the layers to known and dated changes in the Earth's magnetic field.

(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)

First Published: Thu, July 12 2018. 12:15 IST
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