2004 Denver Annual Meeting (November 7–10, 2004)
Session No. 31 Sunday, November 7, 2004
1:30 PM-5:30 PM, Colorado Convention Center: 702/704/706

Paleontology III: Life and Climate

Peter Wilf and David L. Fox, Presiding
 Paper #Start Time
31-11:30 PM Paper Withdrawn
31-21:45 PM THE ORIGIN OF A C4 SPECIES? EVOLUTION AND ATMOSPHERIC INTERACTIONS IN C3 AND C4 SUBTYPES OF ALLOTEROPSIS SEMIALATA: OSBORNE, Colin P.1, IBRAHIM, Doug G.1, GILBERT, Matthew E.2, HAASBROEK, Alida2, and RIPLEY, Brad. S.2, (1) Dept. Animal and Plant Sciences, University of Sheffield, Sheffield, S10 2TN, c.p.osborne@sheffield.ac.uk, (2) Botany Department, Rhodes Univ, PO Box 94, Grahamstown, 6140
31-32:00 PM NEOGENE HISTORY OF C4 BIOMASS IN THE GREAT PLAINS, U.S.A: FOX, David L., Department of Geology and Geophysics, Univ of Minnesota, 310 Pillsbury Dr. SE, Minneapolis, MN 55455, dlfox@umn.edu and KOCH, Paul L., Earth Sciences, Univ of California, Santa Cruz, 1156 High Street, Santa Cruz, CA 95064
31-42:15 PM DID DINOSAURS EAT C4 PLANTS DURING THE CRETACEOUS? CARBON ISOTOPE EVIDENCE AND POSSIBLE ECOLOGIC SETTINGS: FRICKE, Henry C., Geology, Colorado College, Colorado Springs, CO 80903, hfricke@coloradocollege.edu.
31-52:30 PM PHYTOLITH EVIDENCE FOR C3 GRASSES FROM LATE MIOCENE “PIKERMIAN” FAUNAS IN THE EASTERN MEDITERRANEAN: STRÖMBERG, Caroline A.E., Department of Palaeobotany, Swedish Museum of Nat History, Box 50007, Svante Arrhenius väg 7, Stockholm, 104 05, caroline.stromberg@nrm.se and WERDELIN, Lars, Department of Palaeozoology, Swedish Museum of Nat History, Box 50007, Svante Arrhenius väg 7, Stockholm, 104 05, Sweden
31-62:45 PM DISTRIBUTION PATTERNS AND CARBON ACQUISITION PHYSIOLOGY OF THE C4 SHRUBS ATRIPLEX SPP. IN THE SOUTHWESTERN USA ACROSS THE LAST GLACIAL-INTERGLACIAL CYCLE: VAN DE WATER, Peter K., U.S. Geol Survey, 200 S.W. 35th St, Corvallis, OR 97333, pvandewater@usgs.gov, BETANCOURT, Julio L., U.S. Geol Survey, 1645 W. Anklam Rd, Tucson, AZ 85745, and LEAVITT, Steven W., Lab. of Tree-Ring Research, Univ of Arizona, 105 W. Stadium, Bldg. #58, Tucson, AZ 85721
31-73:00 PM MAMMALIAN SPECIES ABUNDANCES AS CLIMATIC INDICATORS IN HALL’S CAVE, TEXAS: GEORGE, Christian O., Jackson School of Geosciences, Univ of Texas at Austin, 1 University Station, C1100, University of Texas at Austin, Austin, TX 78712-0254, cogeorge@mail.utexas.edu and RUEZ, Dennis R. Jr, Environmental Science Institute, The Univ of Texas at Austin, Austin, TX 78712-0254
 3:15 PM Break
31-83:30 PM DIGITAL LEAF PHYSIOGNOMY: CALIBRATION OF A NEW METHOD FOR RECONSTRUCTING CLIMATE FROM FOSSIL PLANTS: ROYER, Dana L.1, JANESKO, David1, WILF, Peter1, KOWALSKI, Elizabeth A.2, and DILCHER, David L.2, (1) Dept. of Geosciences, Pennsylvania State Univ, University Park, PA 16802, droyer@psu.edu, (2) Dept. of Natural Sciences, Univ of Florida, Florida Museum of Natural History, Gainesville, FL 32611
31-93:45 PM CLIMATE AND MODERN NEOTROPICAL PLANT DISTRIBUTIONS: MACROECOLOGICAL AND PALEOECOLOGICAL IMPLICATIONS: PUNYASENA, Surangi W., Committee on Evolutionary Biology, Univ of Chicago, 1025 East 57th Street, Culver 402, Chicago, IL 60637, surangi@uchicago.edu, ESHEL, Gidon, Department of the Geophysical Sciences, Univ of Chicago, 5734 South Ellis Avenue, HGS 401, Chicago, IL 60637, and MCELWAIN, Jennifer C., Department of Geology, The Field Museum, 1400 S. Lake Shore Drive, Chicago, IL 60605
31-104:00 PM EOCENE PLANT DIVERSITY AT LAGUNA DEL HUNCO AND RÍO PICHILEUFÚ, PATAGONIA, ARGENTINA: WILF, Peter, Department of Geosciences, Pennsylvania State University, University Park, PA 16802, pwilf@psu.edu, JOHNSON, Kirk, Department of Earth Sciences, Denver Museum of Nature & Sci, 2001 Colorado Blvd, Denver, CO 80205, CUNEO, N. Ruben, Paleobotany, MEF, Av. Fontana 140, Trelew, 9100, Argentina, GANDOLFO, Maria A., Department of Plant Biology, Cornell Univ, L. H. Bailey Hortorium, 460 Mann Library, Ithaca, NY 14853, and SMITH, Michael E., Dept. Geology & Geophysics, Univ of Wisconsin- Madison, Madison, WI 53706
31-114:15 PM EOCENE PLANT-INSECT ASSOCIATIONAL DIVERSITY AT LAGUNA DEL HUNCO, PATAGONIA, ARGENTINA: LABANDEIRA, Conrad C., Department of Paleobiology, National Museum of Nat History, Smithsonian Institution, Washington, DC 20013-7012, labandeira.conrad@nmnh.si.edu, WILF, Peter, Department of Geosciences, Pennsylvania State University, University Park, PA 16802, CUNEO, N. Ruben, Paleobotany, MEF, Av. Fontana 140, Trelew, 9100, Argentina, and JOHNSON, Kirk, Department of Earth Sciences, Denver Museum of Nature & Sci, 2001 Colorado Blvd, Denver, CO 80205
31-124:30 PM THE EFFECT OF VARYING PO2 ON VERTEBRATE EVOLUTION: VANDENBROOKS, John M., Geology and Geophysics, Yale Univ, 210 Whitney Ave, New Haven, CT 06511, john.vandenbrooks@yale.edu.
31-134:45 PM HOW AN INCREASE IN THE MG/CA RATIO OF SEAWATER AFTER THE CRETACEOUS DEPRESSED CHALK PRODUCTION AND CAUSED SOME COCCOLITHOPHORES TO SECRETE HIGH-MG CALCITE: STANLEY, Steven M., RIES, Justin B., and HARDIE, Lawrence A., Morton K. Blaustein Department of Earth & Planetary Sciences, Johns Hopkins Univ, Baltimore, MD 21218, stanleyt@jhu.edu
31-145:00 PM A MULTI DISCIPLINARY APPROACH PROXY FOR CENOMANIAN–TURONIAN (LATE CRETACEOUS) BRACKISH SEAWATER: NORMAL PORE MORPHOMETRICS AND OXYGEN ISOTOPE SIGNATURES OF THE OSTRACODE FOSSOCYTHERIDEA: TIBERT, Neil E.1, PATTERSON, William2, ODEGAARD, Laura1, TANKO, Stephanie1, LUDVIGSON, Gregory3, and COLIN, Jean-Paul4, (1) Department of Environmental Science & Geology, Univ of Mary Washington, 432 Jepson Science Center, Fredericksburg, VA 22401, ntibert@umw.edu, (2) Department of Geological Sciences, Univ of Saskatchewan, 114 Science Pl, Saskatoon, SK S7N 5E2, (3) Iowa Geol Survey, 109 Trowbridge Hall, Iowa City, IA 52242, (4) 3 Impasse des Biroulayres, 33610, France
31-155:15 PM MIDDLE MIOCENE UPWELLING AND THE EVOLUTION OF THE NORTH PACIFIC FAUNA: JACOBS, David K., HANEY, Todd A., and LOUIE, Kristina D., Univ California - Los Angeles, Dept Biology, Los Angeles, CA 90095-9000, djacobs@ucla.edu

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