Our earliest ancestors came from Asia, not Africa:
Myanmar fossil find turns human history on its head
9, June, Daily Mail
The birthplace of the human race is Asia - our earliest ancestors
came to Asia in a huge migration 37-38 million years ago, before they
evolved into present-day apes and humans. A team of palaeontologists in
Myanmar has found the tooth of a pre-human ancestor - afrasia djijidae,
so-called because it forms a missing link between Africa and Asia - that
is very similar another early ancestor found in Libya.Four similar teeth
were found after six years of sifting through sediment - a find that
helps seal Asia as the starting point for our species.
‘Not only does Afrasia help seal the case that anthropoids first
evolved in Asia, it also tells us when our anthropoid ancestors first
made their way to Africa, where they continued to evolve into apes and
humans,’ says Chris Beard, Carnegie Museum of Natural History
palaontologist.He worked with an international team that included
scientists from the University of Poitiers. ‘Afrasia is a game-changer
because for the first time it signals when our distant ancestors
initially colonized Africa. If this ancient migration had never taken
place, we wouldn’t be here talking about it.’
Paleontologists have been divided over exactly how and when early
Asian anthropoids made their way from Asia to Africa. The trip could not
have been easy, because a more extensive version of the modern
Mediterranean Sea called the Tethys Sea separated Africa from Eurasia at
that time. While the discovery of Afrasia does not solve the exact route
early anthropoids followed in reaching Africa, it does suggest that the
colonization event occurred relatively recently, only shortly before the
first anthropoid fossils are found in the African fossil record.
Myanmar’s 37-million-year-old Afrasia is remarkable in that its teeth
closely resemble those of Afrotarsius libycus, a North African primate
dating to about the same time.
The four known teeth of Afrasia were recovered after six years of
sifting through tons of sediment near Nyaungpinle in central Myanmar.
Details of tooth shape in the Asian Afrasia and the North African
Afrotarsius fossils indicate that these animals probably ate insects.
The size of their teeth suggests that in life these animals weighed
around 3.5 ounces, roughly the size of a modern tarsier.‘For years we
thought the African fossil record was simply bad,’ says Professor
Jean-Jacques Jaeger of the University of Poitiers in France, the team
leader and a Carnegie Museum research associate.
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