Authors: Anthony D Barnosky; Nicholas Matzke; Susumu Tomiya; Guinevere O U Wogan; Brian Swartz; Tiago B Quental; Charles Marshall; Jenny L McGuire; Emily L Lindsey; Kaitlin C Maguire; Ben Mersey; Elizabeth A Ferrer Journal: Nature Date: 2011-03-03 Impact factor: 49.962