27 marzo 2015
What do butterflies, spiders and lobsters have in common? They are all surviving relatives of a newly identified species called Yawunik kootenayi, a marine creature with two pairs of eyes and prominent grasping appendages that lived as much as 508 million years ago — more than 250 million years before the first dinosaur.
http://feeds.sciencedaily.com/~r/sciencedaily/~3/gh_sBZ-aMb0/150327120552.htm
