Even
among early hominids, the number of premolar roots varies enough to raise serious questions about whether Graecopithecus can be classified among them, says paleoanthropologist Yohannes Haile - Selassie of the Cleveland Museum of Natural History.
Not exact matches
Among several similarities of Graecopithecus teeth to those of
early hominids, partial fusion of the second premolar root stands out, the researchers say.
He has analyzed genetic relationships
among diverse groups of people and finds that today's humans show evidence of interbreeding
among Homo erectus, Homo sapiens, and other
early hominids over a wide span of time, from as far back as 1.5 million years ago until the last hypothesized global migration, around 80,000 years ago.
«The new fossils superbly document the link between modern whales and their land - based forebears,» he concludes, «and should take their place
among other famous «intermediates,» such as the most primitive bird, Archaeopteryx, and the
early hominid Australopithecus.