Authors: John Alroy; Martin Aberhan; David J Bottjer; Michael Foote; Franz T Fürsich; Peter J Harries; Austin J W Hendy; Steven M Holland; Linda C Ivany; Wolfgang Kiessling; Matthew A Kosnik; Charles R Marshall; Alistair J McGowan; Arnold I Miller; Thomas D Olszewski; Mark E Patzkowsky; Shanan E Peters; Loïc Villier; Peter J Wagner; Nicole Bonuso; Philip S Borkow; Benjamin Brenneis; Matthew E Clapham; Leigh M Fall; Chad A Ferguson; Victoria L Hanson; Andrew Z Krug; Karen M Layou; Erin H Leckey; Sabine Nürnberg; Catherine M Powers; Jocelyn A Sessa; Carl Simpson; Adam Tomasovych; Christy C Visaggi Journal: Science Date: 2008-07-04 Impact factor: 47.728