A Long-Ago Ancestor: A Little Fish, With Jaws to Come
"An early vertebrate, known as Metaspriggina, was something of a mystery for years, known only from a pair of ambiguous fossils. But recently, scientists unearthed a trove of much more complete Metaspriggina fossils.
As they report today in the journal Nature, the new fossils offer a remarkably detailed understanding of the first vertebrates, helping scientists understand how major parts of our own anatomy — from eyes to jaws to our muscles — evolved."
Check out the video in +The New York Times
article by +Carl Zimmer
and see the study abstract here: http://goo.gl/exblj4
More info from the University of Cambridge here: http://goo.gl/et4Kxh