Session No. 177 Thursday, November 8, 2001

1:30 PM-5:30 PM, Hynes Convention Center: 106
Paleontology III: Early Life
Mark A. S. McMenamin and Bruce S. Lieberman, Presiding
 Paper #Start Time
177-01:30 PM A LATE ARCHEAN PALEOSOL WITH MICROFOSSILS, RAINDROP STRUCTURES AND EPHEMERAL PONDS?: ABBAN, Andrew Paul, Science Education Department, Harvard-Smithsonian, Center for Astrophysics, 60 Garden Street, MS71, Cambridge, MA 02138, aabban@cfa.harvard.edu.
177-01:45 PM THE "STAR BURST" HYPOTHESIS FOR THE DIVERSIFICATION OF EUKARYOTES AND THE GEOLOGIC RECORD INDICATE VERY EARLY ORIGINS FOR ALL MAJOR LINEAGES: LIPPS, Jere H., Department of Integrative Biology & Museum of Paleontology, Univ of California, Berkeley, CA 94720, jlipps@uclink4.berkeley.edu.
177-02:00 PM CYTOLOGICAL AND ECOLOGICAL COMPLEXITY IN THE EARLY MESOPROTEROZOIC: JAVAUX, Emmanuelle J.1, KNOLL, Andrew H.1, and WALTER, Malcolm R.2, (1) Botanical Museum, Harvard Univ, 26 Oxford street, Cambridge, MA 02138, ejavaux@aol.com, (2) Earth and Planetary Sciences, Australian Centre for Astrobiology, Macquarie Univ, New South Wales, 2109, Australia
177-02:15 PM HIGH MORPHOLOGICAL DIVERSITY IN NEOPROTEROZOIC VASE-SHAPED MICROFOSSIL ASSEMBLAGES FROM THE CHUAR GROUP, GRAND CANYON: COMPARISONS WITH TESTATE AMOEBAE: PORTER, Susannah M., Department of Organismic and Evolutionary Biology, Harvard Univ, 26 Oxford St, Cambridge, MA 02138, sporter@oeb.harvard.edu and MEISTERFELD, Ralf, Department of General Biology, Rheinisch-Westfalische Techn. Hochschule, Kopernikusstrasse 16, D 52056, Aachen, Germany
177-02:30 PM POSSIBLE MICROMETAZOAN COPROLITES FROM THE JOHNNIE FORMATION (LATE NEOPROTEROZOIC) OF THE MOJAVE DESERT, CALIFORNIA: WAGGONER, Ben M., Department of Biology, Univ of Central Arkansas, Conway, AR 72035-5003, benw@mail.uca.edu.
177-02:45 PM MICROBIAL ORIGIN OF SOME OF THE EDIACARAN FOSSILS: GRAZHDANKIN, D., Department of Earth Sciences, Univ. of Cambridge, Downing Street, Cambridge CB2 3EQ United Kingdom, dgra99@esc.cam.ac.uk.
177-03:00 PM GEOBIOS, HYPERSEA AND THE IMPORTANCE OF HYPERMARINE UPWELLING FOR THE DEVELOPMENT OF COMPLEX LIFE: MCMENAMIN, Mark A.S., Department of Earth and Environment, Mount Holyoke College, South Hadley, MA 01075, mmcmenam@mtholyoke.edu.
177-03:15 PM USING BIOGEOGRAPHY TO CONSTRAIN THE TIMING OF THE CAMBRIAN RADIATION: LIEBERMAN, Bruce S., Geology, Univ Kansas, 120 Lindley Hall, 1475 Jayhawk Blvd, Lawrence, KS 66045-7613, blieber@ku.edu.
177-03:30 PM FOSSILS, MOLECULAR CLOCKS AND THE CAMBRIAN EXPLOSION: PETERSON, Kevin J. and TAKACS, Carter, Department of Biological Sciences, Dartmouth College, North College St, Hanover, NH 03755, kevin.peterson@dartmouth.edu
177-03:45 PM EVIDENCE FOR ABUNDANT SEAFLOOR MICROBIAL MATS AND ASSOCIATED METAZOAN LIFESTYLES IN THE LOWER CAMBRIAN ZHONGYICUN PHOSPORITES OF CHINA: DORNBOS, Stephen Q.1, BOTTJER, David J.1, and CHEN, Jun-Yuan2, (1) Department of Earth Sciences, Univ of Southern California, Los Angeles, CA 90089-0740, sdornbos@earth.usc.edu, (2) Nanjing Insitute of Palaeontology and Geology, Nanjing, 210008, China
177-04:00 PM THE NON-PREVALENCE OF CAMBRIAN DEPOSIT FEEDING: BUTTERFIELD, Nicholas J., Department of Earth Sciences, Univ of Cambridge, Downing Street, Cambridge, CB2 3EQ, United Kingdom, njb1005@esc.cam.ac.uk and JENSEN, Soren, Univ California - Riverside, 1432 Geology Bldg, Riverside, CA 92521-0423
177-04:15 PM A MIDDLE CAMBRIAN OXYGEN-DEFICIENT BIOFACIES: GREAT BASIN, USA: GAINES, Robert R., Univ California - Riverside, Dept Earth Sciences -036, Riverside, CA 92507, rgaines@citrus.ucr.edu and DROSER, Mary L., Earth Sciences, Univ of California, Riverside, CA 92521
177-04:30 PM CAMBRIAN FIRM MUDDY SUBSTRATES: SIGNIFICANCE FOR THE PRESERVATION OF TRACE FOSSILS: DROSER, Mary L.1, JENSEN, Soren1, and GEHLING, James G.2, (1) Department of Earth Sciences, Univ of California, Riverside, Riverside, CA 92521, droser@ucrac1.ucr.edu, (2) South Australian Museum, Div of Nat Sciences, North Terrace, Adelaide, 5000, Australia
177-04:45 PM 3D IMAGING OF PYRITIZED SOFT TISSUES IN PALEOZOIC KONSERVAT-LAGERSTÄTTEN: HAGADORN, James W., Division of Geological & Planetary Sciences, California Institute of Technology, Pasadena, CA 91125, hagadorn@caltech.edu, WHITELEY, Thomas E., 105 White Village Dr, Rochester, NY 14625, and NEALSON, Kenneth H., Department of Earth Sciences, Univ of Southern California, Los Angeles, CA 90089
177-05:00 PM ENVIRONMENTAL BIAS OF FOSSIL KONSERVAT LAGERSTÄTTEN THROUGH THE PHANEROZOIC: MIKULIC, Donald G., Illinois State Geol Survey, 615 E Peabody Dr, Champaign, IL 61820-6964, mikulic@isgs.uiuc.edu and KLUESSENDORF, Joanne, Weis Earth Sci Museum, University of Wisconsin-Fox Valley, 1478 Midway Rd, Menasha, WI 54952
177-05:15 PM A SILURIAN CHEMOSYNTHETIC ECOSYSTEM FROM CENTRAL MOROCCO: BARBIERI, Roberto1, CAVALAZZI, Barbara1, and ORI, Gian Gabriele2, (1) Dipartimento di Scienze della Terra e Geo-ambientali, Univ of Bologna, Via Zamboni 67, Bologna, 40126, Italy, barbieri@geomin.unibo.it, (2) IRSPS, Univ D'Annunzio, Viale Pindaro 42, Pescara, 65127, Italy

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