GSA Annual Meeting in Denver, Colorado, USA - 2016

Session No. 184
Tuesday, 27 September 2016: 8:00 AM-12:00 PM
Room 503 (Colorado Convention Center)

T49. Geobiology of Earth-Life Systems I

GSA Geobiology & Geomicrobiology Division; Paleontological Society
Marc Laflamme, Simon A.F. Darroch and James D. Schiffbauer, Advocates
8:15 AM
A TALE OF TWO SEEMINGLY SIMPLE FOSSILS: ELECTRON MICROSCOPY REVEALS EVIDENCE FOR MULTICELLULARITY IN THE PROTEROZOIC FOSSILS CHUARIA AND TAWUIA
TANG, Qing, Geosciences, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, PANG, Ke, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing, 210008, China, YUAN, Xunlai, Nanjing Institute of Geology and Paleontology, Chinese Academy of Sciences, Nanjing, 210008, China and XIAO, Shuhai, Department of Geosciences, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, qingt@vt.edu
8:30 AM
EDIACARAN OCEAN OXIDATION TRIGGERED BY THE DISAPPEARANCE OF EUKARYOTIC PHYTOPLANKTONS
SHEN, Bing1, DONG, Lin1 and LIU, Pengju2, (1)School of Earth and Space Sciences, Peking University, Beijing, 100871, China, (2)Institute of Geology, Chinese Academy of Geological Sciences, Beijing, 100037, China, bingshen@pku.edu.cn
8:45 AM
INSIGHTS INTO VENDOTAENID TAPHONOMY AND STRUCTURE: NEW DATA ON AN OLD FOSSIL
MEYER, Michael1, BROCE, Jesse S.2, SELLY, Tara3 and SCHIFFBAUER, James D.3, (1)Geophysical Laboratory, Carnegie Institution of Washington, 5251 Broad Branch Road, NW, Washington, DC, DC 20015, (2)Geological Sciences, University of Missouri, 101 Geology Building, Columbia, MO 65211, (3)Geological Sciences, University of Missouri, 101 Geological Sciences Building, Columbia, MO 65211, mmeyer@carnegiescience.edu
9:00 AM
DEEP-WATER FIRST OCCURRENCES OF EDIACARA-TYPE FOSSILS ALONG A SHELF-TO-SLOPE TRANSECT IN THE WERNECKE MOUNTAINS, YUKON, CANADA
BOAG, Thomas H., Department of Geological Sciences, Stanford University, 450 Serra Mall Bldg. 320, Stanford, CA 94305, SPERLING, Erik A., Department of Geological Sciences, Stanford University, 450 Serra Mall, Bldg. 320, Palo Alto, CA 94305, STRAUSS, Justin V., Department of Earth Sciences, Dartmouth College, HB6105 Fairchild Hall, Hanover, NH 03755 and MOYNIHAN, David P., Yukon Geological Survey, P.O. Box 2703 (K-14), Whitehorse, YT Y1A2C6, Canada, tomboag@stanford.edu
9:15 AM
THE IMPORTANCE OF BIOTIC INTERACTIONS IN SHAPING EDIACARAN BENTHIC COMMUNITIES: A COMPARATIVE CASE STUDY OF THE GAOJIASHAN AND MISTAKEN POINT BIOTAS
O'NEIL, Gretchen R.1, SCHIFFBAUER, James D.2, HUNTLEY, John Warren2 and CAI, Yaoping3, (1)University of Missouri-Columbia, Columbia, MO 65201; North Dakota State University, 2551 Villa Dr. S Apt. 322, Fargo, ND 58103, (2)Geological Sciences, University of Missouri, 101 Geological Sciences Building, Columbia, MO 65211, (3)Department of Geology, Northwest University, Xi'an, 710069, China, gretchen.oneil@ndsu.edu
9:30 AM
A LINK BETWEEN LATEST EDIACARAN BIOTIC ASSEMBLAGES GLOBALLY: NEW FOSSIL FINDS FROM THE LOWER MEMBER OF THE WOOD CANYON FORMATION IN DEATH VALLEY
SMITH, Emily Frances1, NELSON, Lyle L.2, TWEEDT, Sarah M.1 and O'CONNELL, Nizhoni2, (1)Dept. of Paleobiology, Smithsonian Institution, 10th St. and Constitution Ave, Washington, DC 20013-7012, (2)Department of Earth and Planetary Sciences, Harvard University, 20 Oxford Street, Cambridge, MA 02138, SmithEF@si.edu
 
9:45 AM
Break
10:00 AM
PICKING OUT THE FABRIC OF THE EDIACARA SEAFLOOR: EVIDENCE OF WIDESPREAD, HETEROGENEOUS TEXTURED ORGANIC SURFACES
HALL, Christine M.S.1, TARHAN, Lidya G.2, EVANS, Scott D.1, DZAUGIS, Matthew P.3, HUGHES, Emily B.4, HUGHES, Ian Vincent5, DROSER, Mary L.1 and GEHLING, James G.6, (1)Department of Earth Sciences, University of California, Riverside, 900 University Ave, Riverside, CA 92521, (2)Department of Geology and Geophysics, Yale University, 210 Whitney Ave, New Haven, CT 06511, (3)School of Marine Science, University of Texas Marine Science Institute, 750 Channel View Drive, Port Aransas, TX 78373, (4)Wesleyan University, 45 Wyllys Avenue, Middletown, CT 06459, (5)Riverside STEM Academy High School, 4466 Mt. Vernon, Riverside, CA 92507, (6)South Australian Museum, Adelaide, 5000, Australia, csolo001@ucr.edu
10:15 AM
THE IMPORTANCE OF MICROBIAL MATS IN THE PRESERVATION OF SOFT-BODIED ORGANISMS IN EDIACARAN COARSE-GRAINED SILICICLASTIC ENVIRONMENTS
NEWMAN, Sharon1, MARCUS, Matthew2 and BOSAK, Tanja1, (1)Dept. of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139, (2)Advanced Light Source (ALS), Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, sharon.newman@mit.edu
10:30 AM
ESTABLISHING BASELINES FOR EDIACARAN-STYLE TAPHONOMIC EXPERIMENTS – A NEW DECAY SERIES FOR SEA HARES (MOLLUSCA) AND SEA ANEMONES (CNIDARIA)
GIBSON, Brandt M. and DARROCH, Simon A.F., Earth and Environmental Sciences, Vanderbilt University, 5726 Stevenson Center, 7th floor, Nashville, TN 37240, brandt.m.gibson@vanderbilt.edu
10:45 AM
SEDIMENT COMPOSITION OF BURGESS SHALE TYPE LAGERSTÄTTEN: IMPLICATIONS FOR SOFT-TISSUE PRESERVATION
ANDERSON, Ross P., Department of Geology and Geophysics, Yale University, 210 Whitney Avenue, New Haven, CT 06511, TOSCA, Nicholas J., Department of Earth Sciences, University of Oxford, South Parks Road, Oxford, OX1 3AN, United Kingdom, GAINES, Robert R., Geology Department, Pomona College, 185 E. 6th St, Claremont, CA 91711 and BRIGGS, Derek E.G., Department of Geology & Geophysics, Yale University, 210 Whitney Avenue, New Haven, CT 06511, ross.anderson@yale.edu
11:00 AM
EXCEPTIONALLY PRESERVED FOSSIL ASSEMBLAGES THROUGH GEOLOGIC TIME AND SPACE
MUSCENTE, A. Drew1, LAFLAMME, Marc2, SCHIFFBAUER, James D.3, BROCE, Jesse S.4, O'DONNELL, Kenneth H.5, BOAG, Thomas H.6, MEYER, Michael7, HAWKINS, Andrew D.8, HUNTLEY, John Warren3 and XIAO, Shuhai8, (1)Department of Earth and Planetary Sciences, Harvard University, Cambridge, MA 02138, (2)Department of Chemical and Physical Sciences, University of Toronto Mississauga, 3359 Mississauga Road, Mississauga, ON L5L 1C6, Canada, (3)Geological Sciences, University of Missouri, 101 Geological Sciences Building, Columbia, MO 65211, (4)Geological Sciences, University of Missouri, 101 Geology Building, Columbia, MO 65211, (5)Germantown, MD 20876, (6)Department of Geological Sciences, Stanford University, 450 Serra Mall Bldg. 320, Stanford, CA 94305, (7)Geophysical Laboratory, Carnegie Institution of Washington, 5251 Broad Branch Road, NW, Washington, DC, DC 20015, (8)Department of Geosciences, Virginia Tech, Blacksburg, VA 24061, a.d.muscente@gmail.com
11:15 AM
CONGRUENCE OF DIVERSITY TRAJECTORIES BETWEEN BODY FOSSILS AND TRACE FOSSILS
BUATOIS, Luis A. and MANGANO, Maria Gabriela, Geological Sciences, University of Saskatchewan, Saskatoon, SK S7K 5E2, Canada, luis.buatois@usask.ca
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