Session No. 75 Monday, October 28, 2002

8:00 AM-12:00 PM, Colorado Convention Center: A102/104/106
T78. Developing Perspectives on the Ecological Context of Biological Evolution Across the Neoproterozoic-Cambrian Transition
Loren E. Babcock, Presiding
 Paper #Start Time
75-18:00 AM IN THE WAKE OF A SNOWBALL EARTH AND IN THE DAWN OF ANIMAL RADIATION: TERMINAL PROTEROZOIC EVOLUTION OF MULTICELLULAR EUKARYOTES: XIAO, Shuhai, Department of Geology, Tulane Univ, New Orleans, LA 70118, sxiao@tulane.edu, HUA, Hong, Department of Geology, Northwest Univ, Xi'an, 710069, China, CHEN, Zhe, Nanjing Institute of Geology and Paleontology, Chinese Academy of Sciences, Nanjing, 210008, China, and ZHANG, Luyi, Xi'an Institute of Geology and Mineral Rscs, Xi'an, 710054, China
75-28:15 AM ECOLOGICAL SUCCESSION IN THE NEOPROTEROZOIC: CLAPHAM, Matthew E. and NARBONNE, Guy M., Department of Geological Sciences, Queen's Univ, Kingston, ON K7L 3N6, Canada, clapham@earth.usc.edu
75-38:30 AM A VAUCHERIA-LIKE FOSSIL FROM THE NEOPROTEROZOIC OF SPITSBERGEN: BUTTERFIELD, Nicholas J., Earth Sciences, Univ of Cambridge, Downing Street, Cambridge CB2 3EQ United Kingdom, njb1005@esc.cam.ac.uk.
75-48:45 AM NEW PERSPECTIVES ON THE PROTEROZOIC TRACE FOSSIL RECORD: JENSEN, Sören1, DROSER, Mary L.1, BUDD, Graham E.2, and GEHLING, James G.3, (1) Earth Sciences, UCR, Riverside, Riverside, CA 92521, soren@ucrac1.ucr.edu, (2) Earth Sciences, Uppsala Univ, Norbyvägen 22, Uppsala, SE-752 36, Sweden, (3) South Australian Museum, Div of Nat Sciences, North Terrace, Adelaide, 5000, Australia
75-59:00 AM INSIDE ANCIENT ANIMAL EMBRYOS AND ALGAE – COMPUTED TOMOGRAPHIC ANALYSIS OF NEOPROTEROZOIC MULTICELLULAR EUKARYOTES: HAGADORN, James W., Department of Geology, Amherst College, Amherst, MA 01002, jwhagadorn@amherst.edu and XIAO, Shuhai, Department of Geology, Tulane Univ, New Orleans, LA 70118
75-69:15 AM A TAPHONOMIC TEST OF THE BIOGENICITY OF PUTATIVE PHOSPHATIZED SPONGE EMBRYOS FROM THE NEOPROTEROZOIC DOUSHANTUO FORMATION, SOUTHWEST CHINA: DORNBOS, Stephen Q. and BOTTJER, David J., Department of Earth Sciences, Univ of Southern California, Los Angeles, CA 90089-0740, sdornbos@earth.usc.edu
75-79:30 AM EARLY EVOLUTION OF MARINE TROPHIC STRUCTURES: NEOPROTEROZOIC TO CAMBRIAN: LIPPS, Jere H., Department of Integrative Biology & Museum of Paleontology, Univ of California, Berkeley, CA 94720, jlipps@uclink4.berkeley.edu and FEDONKIN, M.A., Paleontological Institute, Russian Academy of Sciences, 123 Profsoyuznaya Street, Moscow, 117868, Russia
75-89:45 AM ANATOMY, PALEOECOLOGY, AND TAPHONOMY OF THE TRILOBITE BUENELLUS FROM THE SIRIUS PASSET BIOTA (CAMBRIAN), NORTH GREENLAND: BABCOCK, Loren E., Department of Geological Sciences, The Ohio State Univ, 125 South Oval Mall, Columbus, OH 43210, babcock.5@osu.edu and PEEL, John S., Department of Historical Geology and Palaeontology, Uppsala Univ, Norbyvagen 22, Uppsala, S-753 36, Sweden
 10:00 AM Break
75-910:15 AM THE MULTIPLE CAUSES AND ORIGINS OF BIOMINERALIZED SKELETONIZATION: BENGTSON, Stefan, Department of Palaeozoology, Swedish Museum of Nat History, Box 50007, Stockholm SE-104 05 Sweden, stefan.bengtson@nrm.se.
75-1010:30 AM DID CHANGES IN SEAWATER CHEMISTRY PLAY A ROLE IN THE CAMBRIAN EXPLOSION?: BRENNAN, Sean T., U.S. Geological Survey, MS 956, National Center, 12201 Sunrise Valley Drive, Reston, VA 20192, sbrennan@usgs.gov, LOWENSTEIN, Tim K., SUNY at Binghamton, Dept Geological Sciences, Binghamton, NY 13902, and HORITA, Juske, Oak Ridge National Lab, PO Box 2008, Oak Ridge, TN 37831-2008
75-1110:45 AM DRIVING THE CAMBRIAN EXPLOSION: ECOLOGICAL EXTRACTION OF THE LATENT DEVELOPMENTAL POTENTIAL ALREADY PRESENT IN THE NEOPROTEROZOIC ANIMAL GENOME: MARSHALL, Charles R., Museum of Comparative Zoology, Harvard Univ, 26 Oxford Street, Cambridge, MA 02138, cmarshall@oeb.harvard.edu.
75-1211:00 AM SOD BUSTERS ALONG THE OLD CAMBRIAN TRAIL: BOTTJER, David J. and DORNBOS, Stephen Q., Department of Earth Sciences, Univ of Southern California, Los Angeles, CA 90089-0740, dbottjer@earth.usc.edu
75-1311:15 AM CLOSING THE PHOSPHATIZATION WINDOW: TESTING FOR THE INFLUENCE OF TAPHONOMIC MEGABIAS ON THE PATTERN OF SMALL SHELLY FOSSIL DECLINE: PORTER, Susannah M., Department of Earth and Space Sciences, UCLA, 595 Charles Young Drive East, Los Angeles, CA 90095, sporter@oeb.harvard.edu.
75-1411:30 AM TAPHONOMY OF SOME EXCEPTIONALLY PRESERVED ORGANISMS FROM THE LOWER CAMBRIAN OF LAURENTIA: SKINNER, Ethan S., Department of Geological Sciences, The Ohio State University, Columbus, OH 43210, skinner.82@osu.edu, BABCOCK, Loren E., Department of Geological Sciences, The Ohio State Univ, 125 South Oval Mall, Columbus, OH 43210, and PEEL, John S., Department of Historical Geology and Palaeontology, Uppsala Univ, Norbyvagen 22, Uppsala, S-753 36, Sweden
75-1511:45 AM TIME-SPACE DISTRIBUTION OF A PECULIAR CAMBRO-ORDOVICIAN THROMBOLITE: MICROBIALITE BIOGEOGRAPHY?: SHAPIRO, Russell S., Department of Geology, Gustavus Adolphus College, 800 W. College, St. Peter, MN 56082, rshapiro@gustavus.edu and AWRAMIK, Stanley M., Department of Geological Sciences, Univ of California, Santa Barbara, CA 93106

Back to the 2002 Denver Annual Meeting (October 27-30, 2002)