The oldest fossilized humanoid bone - a jaw fragment, showing five teeth intact - dating back 2.8 million years ago, was discovered in a desert of Ethiopia, reports Reuters.
According to scientists, this discovery has pushed back its history with about half a million years when they appeared first specimens of prehistoric people.
The researchers said Wednesday that bone is the oldest fossilized bone fragment to the game that belonged to a humanoid genus "Homo". The bone seems to have belonged to an unknown species of one of the earliest families of humanoids.
Our species, Homo sapiens, appeared in only 200,000 years ago, following an evolutionary process. So far, the oldest fragment of bone from a copy humanoid end dates miliioane 2.3 - 2.4 million years and belonged to the species Homo habilis a copy of.
"Although it is probably a new species prefer to find some more bone material in that area before granting that species scientific name," said Brian Villmoare, professor of anthropology at the University of Nevada, Las Vegas, coauthor of this study which was published in the journal Science.
Bone fragment found in 2013 in the Afar region in northeastern Ethiopia, about 65 kilometers away from the area where his remains were discovered "Lucy" - one of the most famous fossil of a human ancestor - 1974 . Species that included Lucy, Astralopithecus afarensis, Homo genus precedes the evolutionary history of man.
Anatomy of the new fossils, which is on the left side of the mandible, suggesting a closely related species of the genus subsequent anthropological "Homo". Bone has a number of features including the shape and proportions jaw teeth separating early families of the genus "Homo" of Australopithecus, which was more like monkeys. But very sloping chin reminiscent of Lucy.
Humanoids anthropological genus "Homo" began to develop 2 million years ago larger brains have started to use tools and eat meat.
Source: mediafax
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