2004 Denver Annual Meeting (November 7–10, 2004)

Session No. 31
Sunday, 7 November 2004: 1:30 PM-5:30 PM

Paleontology III: Life and Climate

 

Peter Wilf and David L. Fox, Chairs
Paper #
Start Time
1
1:30 PM
Withdrawn
2
1:45 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, Alida3 and RIPLEY, Brad. S.3, (1)Dept. Animal and Plant Sciences, University of Sheffield, Sheffield, S10 2TN, (2)Botany Department, Rhodes Univ, PO Box 94, Grahamstown, 6140, (3)Botany Department, Rhodes Univ, PO Box 94, Grahamstown, 6140, South Africa, c.p.osborne@sheffield.ac.uk, c.p.osborne@sheffield.ac.uk
3
2:00 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 and KOCH, Paul L., Earth Sciences, Univ of California, Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, dlfox@umn.edu, dlfox@umn.edu
4
2:15 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, hfricke@coloradocollege.edu
5
2:30 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 and WERDELIN, Lars, Department of Palaeozoology, Swedish Museum of Nat History, Box 50007, Svante Arrhenius väg 7, Stockholm, 104 05, Sweden, caroline.stromberg@nrm.se, caroline.stromberg@nrm.se
6
2:45 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, BETANCOURT, Julio L., Branch of Regional Research, ER, Water, U.S. Geological Survey, 12201 Sunrise Valley Dr, Reston, VA 20192 and LEAVITT, Steven W., Lab. of Tree-Ring Research, Univ of Arizona, 1215 E. Lowell St., Tucson, AZ 85721, pvandewater@usgs.gov, pvandewater@usgs.gov
7
3:00 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 and RUEZ Jr, Dennis R., Jr, Environmental Science Institute, The Univ of Texas at Austin, Austin, TX 78712-0254, cogeorge@mail.utexas.edu, cogeorge@mail.utexas.edu
 
3:15 PM
Break
8
3:30 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, (2)Dept. of Natural Sciences, Univ of Florida, Florida Museum of Natural History, Gainesville, FL 32611, droyer@psu.edu, droyer@psu.edu
9
3:45 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, 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, surangi@uchicago.edu, surangi@uchicago.edu
10
4:00 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, 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, Mann Library, Ithaca, NY 14853 and SMITH, Michael E., Dept. Geology & Geophysics, Univ of Wisconsin- Madison, Madison, WI 53706, pwilf@psu.edu, pwilf@psu.edu
11
4:15 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, 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, labandeira.conrad@nmnh.si.edu, labandeira.conrad@nmnh.si.edu
12
4:30 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, john.vandenbrooks@yale.edu
13
4:45 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, stanleyt@jhu.edu
14
5:00 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, (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, ntibert@umw.edu, ntibert@umw.edu
15
5:15 PM
MIDDLE MIOCENE UPWELLING AND THE EVOLUTION OF THE NORTH PACIFIC FAUNA
JACOBS, David K.1, HANEY, Todd A.2 and LOUIE, Kristina D.2, (1)Dept. Ecology and Evolutionary Biology/Earth, Planetary & Space Sciences, Univ California - Los Angeles, 610 Charles E. Young Dr. East, Los Angeles, CA 90095-9000, (2)Univ California - Los Angeles, Dept Biology, Los Angeles, CA 90095-9000, djacobs@ucla.edu, djacobs@ucla.edu