DENVER MUSEUM OF NATURE & SCIENCE ANNALS NUMBER 1, SEPTEMBER 1, 2009 Land Mammal Faunas of North America Rise and Fall During the Early Eocene Climatic Optimum Michael O. Woodburne, Gregg F. Gunnell, and Richard K. Stucky WWW.DMNS.ORG/MAIN/EN/GENERAL/SCIENCE/PUBLICATIONS The Denver Museum of Nature & Science Annals is an Frank Krell, PhD, Editor-in-Chief open-access, peer-reviewed scientific journal publishing original papers in the fields of anthropology, geology, EDITORIAL BOARD: paleontology, botany, zoology, space and planetary Kenneth Carpenter, PhD (subject editor, Paleontology and sciences, and health sciences. Papers are either authored Geology) by DMNS staff, associates, or volunteers, deal with DMNS Bridget Coughlin, PhD (subject editor, Health Sciences) specimens or holdings, or have a regional focus on the John Demboski, PhD (subject editor, Vertebrate Zoology) Rocky Mountains/Great Plains ecoregions. David Grinspoon, PhD (subject editor, Space Sciences) Frank Krell, PhD (subject editor, Invertebrate Zoology) The journal is available online at www.dmns.org/main/en/ Steve Nash, PhD (subject editor, Anthropology and General/Science/Publications free of charge. Paper copies Archaeology) are exchanged via the DMNS Library exchange program (
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