mercoledì 11 giugno 2014

NYT Science: A Long-Ago Ancestor: A Little Fish, With Incipient Jaws

A Long-Ago Ancestor: A Little Fish, With Incipient Jaws
By CARL ZIMMER

Metaspriggina is two inches long and 505 million years old, and scientists recently uncovered an extraordinary cache of its fossils.

Published: June 12, 2014 at 4:00AM

via NYT Science http://ift.tt/1pkzQ9E