The Neanderthals and the Denis people both lived in the remote Siberian cave thousands of years ago and can even use shelter at the same time, study finds
- Two new studies attempt to narrow the history of human ancestors
- The artifacts found in the Denis Cave indicate that the Denis and Neanderthals lived there
- The study suggests that the place was home to the Denizens 287,000 years ago
- Occupation may overlap with the arrival of Neanderthals 193,000 years ago
Two separate types of human ancestors can both occupy a cave in Siberia at the same time thousands of years ago.
Scientists have long been working on narrowing the timeline of hominine work in Denis Cave after a number of artifacts, including stone tools and bone dots, have appeared on the site.
A few new analyzes of discoveries now suggest that the site was home to the Denizens 287,000 years ago, perhaps overlapping with the arrival of Neanderthals 193,000 years ago.
Much about Denisans remains a mystery; although their existence on the site is known from fragments of bones and teeth, the size and complexity of the cave (pictured) makes it difficult to study
Two new studies published in nature this week could help improve our understanding of past histories of hominids.
Much about Denisans remains a mystery; although their existence in the place is known from fragments of bones and teeth, the size and complexity of the cave made it difficult to study.
In one of the new efforts, a team led by researchers at the University of Wollongong led the technique known as optically stimulated luminescence data, which analyzed sediments from Denis Cave.
This allowed them to estimate when some of the mineral grains were last exposed to sunlight to create a timeline for the fossils and artifacts that appeared there.
According to the team, the occupation spans about 300,000 years ago 20,000 years ago.
Scientists have long been working on narrowing the timeline of hominine work in Denis Cave after a number of artifacts, including stone tools and bone dots (pictured)
Two new studies published in nature this week could help improve our understanding of past histories of hominids. The pendant found in Denis Cave is mentioned above
Scientists estimate that the Denizs appeared about 287,000 years ago and stayed there 55,000 years ago.
Neanderthals, on the contrary, appear in record reports about 193,000 years ago, up to 97,000 years.
In the second article, scientists used radiocarbon dating to evaluate all known Denisovan fossils.
The team introduced a total of 50 new radiocarbon terms and described three new fossil fragments Denisovan.
Their analysis found that the Denizs were in place 195,000 years ago, with the youngest dating about 76,000 to 52,000 years ago.
A couple of new analyzes of discoveries now suggest that the site was home to Denizens 287,000 years ago, perhaps overlapping with the arrival of Neanderthals 193,000 years ago
WHO ARE DENIZED?
The denizens are an extinct kind of man who seemed to have lived in Siberia and even in Southeast Asia.
Although the remains of these mysterious early humans were discovered only in one place – the Denis Cave in Altai in Siberia, DNA analysis showed they are widespread.
DNA from these early humans has been found in the modern human genome in a wide Asia, suggesting that it once covered a wide range.
Finger Fragment DNA fragment analysis in 2010 (pictured), which belonged to a young girl, revealed that the Denis are kind of relatives but distinct from Neanderthals.
They are supposed to become sister species of Neanderthals who lived in Western Asia and Europe at about the same time.
These two species seem to have separated from the common ancestor some 200,000 years ago, while separating themselves from the modern human line Homo sapien some 600,000 years ago.
Bone and ivory beads found in Denis Cave were discovered in the same sedimentary layers as Denisovan fossils, leading to designs that feature sophisticated tools and jewelery.
The DNA analysis of the fifth digit of the finger bone in 2010, which belonged to a young girl, revealed that it was a species related, but distinct from Neanderthals.
Later genetic studies have indicated that ancient human species have separated from Neanderthals some 470,000 and 190,000 years ago.
Anthropologists have since confused whether the cave was a temporary shelter for a group of these denizens, or that it has become a more permanent settlement.
DNA from molar teeth belonging to two other individuals, an adult male and one young woman showed that they died in a cave at least 65,000 years earlier.
Other tests suggest that the tooth of a young woman may be as old as 170,000 years.
The third mole is allegedly belonging to an adult man who died about 7500 years ago in front of a girl whose little finger was discovered.
The bone dots and tokens found in the cave may also be the oldest artifacts Denisovane found in northern Europe, scientists say.
It was about 49,000 to 43,000 years ago.
Together, both new studies lead to a completed population timeline.
"Although there is still some uncertainty about the detailed age of the remains – given the nature and complexity of the deposits and the data methods used – the picture is now clear," wrote archaeologist Robin Dennell in a news article entitled News & Views.