Seems life may have stated over a billion and a half years earlier and died out.

[the annoying thing]

Complex life forms existed 1.5 billion years earlier than previously believed, study finds

A team of international researchers has challenged the long-held belief that complex life forms first emerged on Earth 635 million years ago, presenting findings that show life may have existed over a billion years earlier. In a study published in Precambrian Research Monday by scientists from...

www.yahoo.com