Description found under the Georgian town of Dmanisi skull can cause a revolution in the anthropology of human ancestors. The researchers suggest that several species of the genus Homo should be merged into a single view. In their view, the differences between them are not greater than those between different groups of modern humans.
classification division of the ancient ancestors of Homo sapiens – Homo habilis (Homo habilis), Homo erectus (Homo erectus) and rudolfskogo human (Homo rudolfensis) – for different types may be excessive. Such a conclusion was made by scientists studying hominid skull age 1,800,000 years old, found in Georgia, near the town of Dmanisi. This is stated in an article published in Science .
group of researchers from Georgia, Israel, the U.S. and Switzerland, led by David Lordkipanidze representing the National Museum of Georgia (Tbilisi), discovered and described another skull found during the excavations. Artifact (without lower jaw) was found in 2005, and then the researchers found that one of the previously identified jaws belong to the same person. Thus, the scientists were able to assemble a complete hominid skeleton head bone.
since 1991 near the town of Dmanisi archaeological team discovers the remains of ancient people: cchitaetsya that they lived 1,85-1,77 million years ago.
alleged that found in Southeast Georgia hominids – the oldest outside of Africa .
Homo erectus straightened in Georgia
more exact age found 80 km from Tbilisi remains of human ancestors suggests that hominids probably evolved in homo erectus … ?
article described four skulls, one belonged to the teenager, three – adult individuals.
Description
skull allows scientists to speculate on the early evolution of the genus Homo. Traditionally it is seen as follows: the first member of the genus Homo habilis was a man (Homo habilis), which then evolved into Homo erectus (Homo erectus), which has become the predecessor of Homo sapiens. However, this simplified scheme: some findings of scientists do not fit into this picture.
So, in 1970 near Lake Rudolf in Kenya was discovered hominid skull. His vehicle was named rudolfskim man (Homo rudolphensis), but the debate between anthropologists about whether or not the holder a separate species or treated people skillful, continued.
In 2012, a group of researchers have found depicted the Ethiopian town Cobby Handicap remains, concluded : rudolfsky man – a separate, parallel branch of evolution.
The reason for this was the lower jaw: its shape is different from that of the jaw Homo habilis.
main features of Dmanisi skulls number 5 – protruding jaw and a large face, combined with the small size of the skull (546 cu. cm).
volume of the brain in the skull number 5 was less than that of his four brothers and is at a level close to the lower threshold of Homo habilis (507 cu. cm). However, the estimated height and weight of individuals with this skull are already at the level of Homo habilis, and even closer to that of modern humans (146-166 cm, 47-50 kg). At the same slope of the skull in the area of ??the nose brings the skull number 5 with the man and the man working rudolfskogo (Homo ergaster; his remains were found in Ethiopia).
ape found in Georgia
oldest hominid skeletons outside Africa uchnyh surprised. We found near the Georgian town of Dmanisi human ancestors were … ?
Thus, according to Lordkipanidze and his co-authors, the findings in Dmanisi suggest that the ancient species of the genus Homo had a lot of variety, in addition, it can be argued that the earliest human remains found in different places of the earth belonged to the same species. Scientists refer to in this study Australopithecus who stand paleodemy, that is paleonarody.
They argue that the difference between the five described a group of scientists in Dmanisi skulls no more than between five skulls of modern man or five modern chimpanzees.
Thus, Lordkipanidze and his colleagues conclude: paleonarodov allocation among hominids and description of the differences between them will be the key to understanding the mechanisms of evolution and geographical spread of human ancestors.
Description of the skull
number 5 in itself will cause the flow of articles on the physical anthropology of man, and if the idea of ??Lordkipanidze will be recognized by the scientific community, the researchers will have to completely change your approach to the classification of the genus Homo, as well as, probably, to expand their understanding of the evolution in general.
However, it seems to summarize researchers look bold, so the discussion of specific accessory holder of the skull number 5 can not be avoided.
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