2002 Denver Annual Meeting (October 27-30, 2002)

Session No. 75
Monday, 28 October 2002: 8:00 AM-12:00 PM

T78. Developing Perspectives on the Ecological Context of Biological Evolution Across the Neoproterozoic-Cambrian Transition

Paleontological Society; GSA Geobiology and Geomicrobiology Division

 

Loren E. Babcock, Advocates
Paper #
Start Time
1
8:00 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, 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, sxiao@tulane.edu, sxiao@tulane.edu
2
8:15 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, clapham@earth.usc.edu
3
8:30 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, njb1005@esc.cam.ac.uk
4
8:45 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, (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, soren@ucrac1.ucr.edu, soren@ucrac1.ucr.edu
5
9:00 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 and XIAO, Shuhai, Department of Geology, Tulane Univ, New Orleans, LA 70118, jwhagadorn@amherst.edu, jwhagadorn@amherst.edu
6
9:15 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, Department of Earth Sciences, Univ of Southern California, Los Angeles, CA 90089-0740, sdornbos@earth.usc.edu, sdornbos@earth.usc.edu
7
9:30 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 and FEDONKIN, M.A., Paleontological Institute, Russian Academy of Sciences, 123 Profsoyuznaya Street, Moscow, 117868, Russia, jlipps@uclink4.berkeley.edu, jlipps@uclink4.berkeley.edu
8
9:45 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 and PEEL, John S., Department of Historical Geology and Palaeontology, Uppsala Univ, Norbyvagen 22, Uppsala, S-753 36, Sweden, babcock.5@osu.edu, babcock.5@osu.edu
 
10:00 AM
Break
9
10:15 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, stefan.bengtson@nrm.se
10
10:30 AM
DID CHANGES IN SEAWATER CHEMISTRY PLAY A ROLE IN THE CAMBRIAN EXPLOSION?
BRENNAN, Sean T., U.S. Geol Survey, MS 956, National Center, 12201 Sunrise Valley Drive, Reston, VA 20192, 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, sbrennan@usgs.gov, sbrennan@usgs.gov
11
10:45 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, cmarshall@oeb.harvard.edu
12
11:00 AM
SOD BUSTERS ALONG THE OLD CAMBRIAN TRAIL
BOTTJER, David and DORNBOS, Stephen Q., Department of Earth Sciences, Univ of Southern California, Los Angeles, CA 90089-0740, dbottjer@usc.edu, dbottjer@usc.edu
13
11:15 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, sporter@oeb.harvard.edu
14
11:30 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, 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, skinner.82@osu.edu, skinner.82@osu.edu
15
11:45 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 and AWRAMIK, Stanley M., Department of Geological Sciences, Univ of California, Santa Barbara, CA 93106, rshapiro@gustavus.edu, rshapiro@gustavus.edu
See more of: Technical Sessions