Session: Biological and Environmental Feedbacks in the Colonization of the Water Column (2013 GSA Annual Meeting in Denver: 125th Anniversary of GSA (27-30 October 2013))

PLANKTON DYNAMICS THROUGH THE NEOPROTEROZOIC-PALEOZOIC TRANSITION: ECOLOGICAL, ENVIRONMENTAL AND EVOLUTIONARY FEEDBACKS
Abstract ID#: 225243

BUTTERFIELD, Nicholas J., Department of Earth Sciences, University of Cambridge, Downing Street, Cambridgeshire, Cambridge CB2 3EQ United Kingdom, njb1005@cam.ac.uk

CHEMICAL LIMITATIONS ON A SIMILARLY SUITABLE MOTHER (CLASS-M): ARE SNOWBALLS A MANDATORY PHASE IN THE DEVELOPMENT OF AN OXYGENATED ATMOSPHERE?
Abstract ID#: 233006

CRAMER, Bradley D., Department of Earth and Environmental Sciences, University of Iowa, 121 Trowbridge Hall, Iowa City, IA 52242, bradley-cramer@uiowa.edu and HASIUK, Franciszek, Geological and Atmospheric Sciences, Iowa State Unversity, 253 Science I, Ames, IA 50011

THE EARLY PALAEOZOIC DIVERSIFICATION OF THE PLANKTON, ITS POSSIBLE CAUSES AND PROBABLE CONSEQUENCES
Abstract ID#: 228254

SERVAIS, Thomas, DANELIAN, Taniel, NOWAK, Hendrik, and POUILLE, Lauren, UMR 8217 du CNRS: Géosystèmes, Université Lille 1, Villeneuve d'Ascq, 59655, France, Thomas.Servais@univ-lille1.fr

HIGH-RESOLUTION CONODONT OXYGEN ISOTOPE RECORD OF ORDOVICIAN CLIMATE CHANGE
Abstract ID#: 222838

CHEN, Jianbo¹, ZHAO, Laishi¹, ALGEO, Thomas J.², CHEN, Zhong Qiang¹, and LI, Zhihong³, (1) State Key Laboratory GPMR, China University of Geosciences, Lumo Road 388, Wuhan, 430074, China, jbchen_cug@126.com, (2) Department of Geology, University of Cincinnati, Cincinnati, OH 45221-0013, (3) Wuhan Center of Geological Survey, Wuhan, 430074, China

Session break
Abstract ID#: 234600

CHANGING PLANKTON COMMUNITY STRUCTURE IN THE LATE KATIAN-EARLY HIRNANTIAN: EVIDENCE FROM GRAPTOLITES AND NITROGEN ISOTOPES
Abstract ID#: 228376

MELCHIN, Michael J., Department of Earth Sciences, St. Francis Xavier University, Antigonish, NS B2G 2V5, Canada, mmelchin@stfx.ca, MITCHELL, Charles E., Geology, University at Buffalo, SUNY, Buffalo, NY 14260, HOLMDEN, Chris, Geological Sciences, University of Saskatchewan, 114 Science Place, Saskatoon, SK S7N 5E2, Canada, ŠTORCH, Petr, Institute of Geology AS CR, Rozvojova 269, Praha 6, 165 00, Czech Republic, and GOLDMAN, Daniel, Department of Geology, University of Dayton, 300 College Park, Dayton, OH 45469

ANALYSIS OF EARLY PALEOZOIC ZOOPLANKTON (GRAPTOLOIDA) EXTINCTION RISK USING MODEL-CHOICE
Abstract ID#: 228459

BOYLE, James T.¹, SHEETS, H. David², WU, Shuang-Ye³, GOLDMAN, Daniel³, MELCHIN, Michael J.⁴, COOPER, Roger A.⁵, SADLER, Peter⁶, and MITCHELL, Charles E.⁷, (1) Evolution, Ecology and Behavior, State University of New York at Buffalo, 411 Cooke Hall, North Campus, Buffalo, NY 14260, jamesboy@buffalo.edu, (2) Dept. of Geology, SUNY at Buffalo, 411 Cooke Hall, Buffalo, NY 14260, (3) Department of Geology, University of Dayton, 300 College Park, Dayton, OH 45469, (4) Department of Earth Sciences, St. Francis Xavier University, Antigonish, NS B2G 2V5, Canada, (5) GNS Science, P.O. Box 30-368, Lower Hutt, 5010, New Zealand, (6) Department of Earth Sciences, University of California, Riverside, Riverside, CA 92521, (7) Geology, University at Buffalo, SUNY, Buffalo, NY 14260

HIGH-RESOLUTION STRATIGRAPHIC CORRELATION AND BIODIVERSITY DYNAMICS OF MIDDLE AND LATE ORDOVICIAN MARINE FOSSILS FROM BALTOSCANDIA AND POLAND
Abstract ID#: 228621

GOLDMAN, Daniel, Department of Geology, University of Dayton, 300 College Park, Dayton, OH 45469, dgoldman1@udayton.edu, SHEETS, H. David, Dept. of Geology, SUNY at Buffalo, 411 Cooke Hall, Buffalo, NY 14260, BERGSTROM, Stig M., School of Earth Sciences, The Ohio State University, Columbus, OH 43210-1308, NOLVAK, Jaak, Institute of Geology at Tallinn University of Technology, Ehitajate tee 5, Tallinn, 19086, Estonia, PODHALAŃSKA, Teresa, Program Bezpieczeństwo Energetyczne, Państwowy Instytut Geologiczny, ul. Rakowiecka 4, Warszawa, 00-975, Poland, MITCHELL, Charles E., Geology, University at Buffalo, SUNY, Buffalo, NY 14260, and VANDENBROUCKE, Thijs R.A., UMR 8217 du CNRS: Géosystèmes, Lille1 University, Villeneuve d'Ascq, 59655, France

COLONISATION OF THE WATER COLUMN BY OSTRACODS: WHEN, HOW AND WHY?
Abstract ID#: 223132

PERRIER, Vincent and SIVETER, David J., Department of Geology, University of Leicester, University Road, Leicester, LE17RH, United Kingdom, vp110@leicester.ac.uk

session break
Abstract ID#: 234601

AN EARLY SILURIAN MYODOCOPE OSTRACOD FROM GREENLAND: PRE-ADAPTATIONS FOR LIFE IN THE WATER COLUMN
Abstract ID#: 230494

PERRIER, Vincent¹, SIVETER, David J.¹, WILLIAMS, Mark¹, and LANE, Philip D.², (1) Department of Geology, University of Leicester, University Road, Leicester, LE17RH, United Kingdom, vp110@leicester.ac.uk, (2) School of Earth Sciences and Geography, Keele University, William Smith Building, Staffordshire, ST5 5BG, United Kingdom

THE DEVONIAN NEKTON REVOLUTION
Abstract ID#: 226920

KLUG, Christian, Palaeontological Institute and Museum, University of Zürich, Karl-Schmid-Strasse 4, Zürich, 8006, Switzerland, chklug@pim.uzh.ch, KROEGER, Bjoern, Berlin, D-10115, Germany, KIESSLING, Wolfgang, GeoZentrum Nordbayern, Friedrich-Alexander-Universität Erlangen-Nürnberg, Loewenichstraße 28, Erlangen, 91054, Germany, and MULLINS, Gary L., Leicester, LE1 7RH, United Kingdom

DEVONIAN MARINE EXTINCTIONS WERE CAUSED BY TROPHIC COLLAPSE DUE TO DECLINING PCO₂
Abstract ID#: 227811

STROTHER, Paul K., Earth and Environmental Sciences, Boston College, Weston Observatory, 381 Concord Road, Weston, MA 02493, strother@bc.edu

Break
Abstract ID#: 234599

EARLIEST CHITINOZOANS DISCOVERED IN THE CAMBRIAN DUYUN FAUNA OF CHINA
Abstract ID#: 223489

SHEN, Cen, Faculty of Land Resource Engineering, Kunming University of Science and Technology, Kunming, 650093, China, ALDRIDGE, Richard J., Department of Geology, University of Leicester, Leicester, LE1 7RH, United Kingdom, WILLIAMS, Mark, Department of Geology, University of Leicester, University Road, Leicester, Leicester, LE1 7RH, United Kingdom, VANDENBROUCKE, Thijs R.A., UMR 8217 du CNRS: Géosystèmes, Lille1 University, Villeneuve d'Ascq, 59655, France, thijs.vandenbroucke@univ-lille1.fr, and ZHANG, Xi-guang, Key Laboratory for Paleobiology, Yunnan University, Kunming, Yunnan, 650091, China

UNDERSTANDING THE RELATIONSHIP BETWEEN DARRIWILIAN GRAPTOLITES’ FUNDAMENTAL NICHE AND EXTINCTION RISK
Abstract ID#: 233494

WOOD, Christopher R.¹, GOLDMAN, Daniel², WU, Shuang-Ye², SHEETS, H. David³, MELCHIN, Michael J.⁴, and MITCHELL, Charles E.¹, (1) Geology, University at Buffalo, SUNY, Buffalo, NY 14260, crwood@buffalo.edu, (2) Department of Geology, University of Dayton, 300 College Park, Dayton, OH 45469, (3) Dept. of Geology, SUNY at Buffalo, 411 Cooke Hall, Buffalo, NY 14260, (4) Department of Earth Sciences, St. Francis Xavier University, Antigonish, NS B2G 2V5, Canada

CAN ZOOPLANKTON DERIVED PROXY DATA HELP TO RECONSTRUCT THE CLIMATE OF THE ORDOVICIAN?
Abstract ID#: 233056

VANDENBROUCKE, Thijs R.A., UMR 8217 du CNRS: Géosystèmes, Lille1 University, Villeneuve d'Ascq, 59655, France, thijs.vandenbroucke@univ-lille1.fr and BENNETT, Carys, Department of Geology, University of Leicester, University Road, Leicester, LE1 7RH, United Kingdom

COLONISING THE CAMBRIAN WATER COLUMN WITH BRADORIID ARTHROPODS
Abstract ID#: 227745

WILLIAMS, Mark¹, VANDENBROUCKE, Thijs R.A.², SERVAIS, Thomas³, PERRIER, Vincent⁴, and SVETER, David J.⁴, (1) Department of Geology, University of Leicester, University Road, Leicester, Leicester, LE1 7RH, United Kingdom, mri@le.ac.uk, (2) UMR 8217 du CNRS: Géosystèmes, Lille1 University, Villeneuve d'Ascq, 59655, France, (3) UMR 8217 du CNRS: Géosystèmes, Université Lille 1, Lille, 59655, France, (4) Department of Geology, University of Leicester, University Road, Leicester, LE17RH, United Kingdom

236. T236. Biological and Environmental Feedbacks in the Colonization of the Water Column

236.
T236. Biological and Environmental Feedbacks in the Colonization of the Water Column