Session: Reconstructing Events of the Late Devonian: Fossil and Rock Record Insights into a Dynamic Biosphere II (GSA 2020 Connects Online)

Session No. 112

Wednesday, 28 October 2020: 10:00 AM-12:00 PM

T66. Reconstructing Events of the Late Devonian: Fossil and Rock Record Insights into a Dynamic Biosphere II

Paleontological Society

Matthew Smart and John. E.A. Marshall, Advocates

Paper #

Start Time

10:00 AM

Introductory Remarks

112-1

10:05 AM

LOCALLY VARIABLE RESPONSES TO A GLOBAL CARBON-CYCLE DISTURBANCE: ENVIRONMENTAL PERTURBATIONS DURING THE FRASNIAN–FAMENNIAN MASS EXTINCTION (Invited Presentation)

PERCIVAL, Lawrence M.E.¹, MARYNOWSKI, Leszek², BAUDIN, François³, DE VLEESCHOUWER, David⁴, RAKOCIŃSKI, Michał², DA SILVA, Anne-Christine⁵ and CLAEYS, Philippe⁶, (1)Analytical, Environmental and Geochemistry Group (AMGC), Vrije Universiteit Brussel, Brussels, 1050, Belgium, (2)Faculty of Earth Sciences, University of Silesia, Będzińska 60, Sosnowiec, 41-200, Poland, (3)Sorbonne University, ISTeP, Paris, 75005, France, (4)MARUM - Center for Marine Environmental Sciences, Universität Bremen,, Bremen, 28359, Germany, (5)Pétrologie sédimentaire, Université de Liège, Sart Tilman B20, Liège, 4000, Belgium, (6)Analytical, Environmental, and Geo- Chemistry Group, Vrije Universiteit Brussel, Pleinlaan 2, Brussels, BE-1050, Belgium

112-2

10:20 AM

SINGLE ORGANIC MICROFOSSILS CARBON ISOTOPES DURING THE LATE DEVONIAN BIOTIC CRISIS, INSIGHTS INTO ECOLOGY AND CARBON CYCLE DYNAMICS

JUNIUM, Christopher K., Department of Earth Sciences, Syracuse University, 204 Heroy Geology Laboratory, Syracuse, NY 13244, COHEN, Phoebe, Geosciences, Williams College, 947 Main Street, Williamstown, MA 01267 and UVEGES, Benjamin Thornton Iglar, Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139

112-3

10:35 AM

TRACKING PHOSPHORUS ACROSS THE KELLWASSER EVENT: A NUTRIENT PROFILE FROM EURAMERICA

SMART, Matthew, Department of Earth Sciences, Indiana University Purdue University Indianapolis, 723 W. Michigan Street, SL118, Indianapolis, IN 46202, FILIPPELLI, Gabriel M., Department of Earth Sciences, Indiana University - Purdue University Indianapolis (IUPUI), 723 W. Michigan St., SL 118, Indianapolis, IN 46202, GILHOOLY III, William, Department of Earth Sciences, Indiana University-Purdue University Indianapolis, Indianapolis, IN 46202, MARSHALL, John. E.A., University of Southampton, Waterfront Campus, European Way, Southampton, SO14 3ZH, United Kingdom and WHITESIDE, Jessica H., Ocean and Earth Science, National Oceanography Centre Southampton, University of Southampton, Southampton, SO14 3ZH, United Kingdom

10:50 AM

Break

112-4

10:55 AM

UV-B RADIATION WAS THE DEVONIAN-CARBONIFEROUS BOUNDARY TERRESTRIAL EXTINCTION KILL MECHANISM

MARSHALL, John. E.A.¹, LAKIN, Jon¹, TROTH, Ian¹ and WALLACE-JOHNSON, Sarah², (1)University of Southampton, Waterfront Campus, European Way, Southampton, SO14 3ZH, United Kingdom, (2)The Sedgwick Museum of Earth Sciences, University of Cambridge, Brighton Building, Madingley Rise, Cambridge, CB3 0EZ, United Kingdom

112-5

11:10 AM

BRACHIOPOD RECORDS OF THE HANGENBERG AND EARLY TOURNAISIAN EXTINCTIONS AND POST-EXTINCTION RECOVERY IN THE UPPERMOST DEVONIAN - EARLIEST CARBONIFEROUS IN THE ILLINOIS BASIN, WESTERN LAURUSSIA

DAY, Jed, Geography, Geology & Environment, Illinois State Univ, Normal, IL 61790-4400

112-6

11:25 AM

STEPPED MIGRATIONS AND THE DEVELOPMENT OF THE FRASNIAN (UPPER DEVONIAN) COSMOPOLITAN BRACHIOPOD (SPIRIFERID) FAUNAS IN CENTRAL AND WESTERN NORTH AMERICAN CARBONATE PLATFORMS

GROSCH, Zachary J.¹, DAY, Jed² and RENNER, Dalton John², (1)Geography, Geology, and The Environment, Illinois State University, S University St, Normal, Il 61761, Normal, IL 61761, (2)Geography, Geology & Environment, Illinois State Univ, Normal, IL 61790-4400

11:35 AM

Discussion

11:50 AM

Concluding Remarks

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