Phylogenetic tree of early hominids, apes and humans.
A new branch of primitive humans reported found in Ethiopia
Dr. Yohannes Haile-Selassie, member of a scientific team working in Ethiopia, and his colleagues have found dental evidence that elevates the hominid subspecies Ardipithecus ramidus kadabba to its own species, Ardipithecus kadabba. This new species, dating between 5.54 and 5.77 million years old, is the oldest member of the genus Ardipithecus.
Haile-Selassie, curator and head of Physical Anthropology at The Cleveland Museum of Natural History, said, "Ardipithecus kadabba may also represent the first species on the human branch of the family tree just after the evolutionary split between lines leading to modern chimpanzees and humans.
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