Authors: J Alroy; C R Marshall; R K Bambach; K Bezusko; M Foote; F T Fursich; T A Hansen; S M Holland; L C Ivany; D Jablonski; D K Jacobs; D C Jones; M A Kosnik; S Lidgard; S Low; A I Miller; P M Novack-Gottshall; T D Olszewski; M E Patzkowsky; D M Raup; K Roy; J J Sepkoski; M G Sommers; P J Wagner; A Webber Journal: Proc Natl Acad Sci U S A Date: 2001-05-15 Impact factor: 11.205