GSA Connects 2023 Meeting in Pittsburgh, Pennsylvania

Session No. 9
Sunday, 15 October 2023: 8:00 AM-12:00 PM
304 / 305 (David L Lawrence Convention Center)

T67. The Early Paleozoic I: Radiations, Extinctions, and Environment

GSA Geobiology and Geomicrobiology Division; GSA Soils and Soil Processes Division; GSA Sedimentary Geology Division; Paleontological Society

 

Benjamin Gill, Sara Pruss and Lidya Tarhan, Advocates
Paper #
Start Time
 
8:00 AM
Introductory Remarks
9-1
8:05 AM
NEW AGE CONSTRAINTS FOR THE BASAL CAMBRIAN PERIOD: GEOCHRONOLOGY OF THE LOWER WOOD CANYON FORMATION, NEVADA, USA
NELSON, Lyle1, CROWLEY, James L.2, SMITH, Emily F.3, SCHWARTZ, Darin2, HODGIN, Eben4 and SCHMITZ, Mark D.2, (1)Department of Earth Sciences, Carleton University, 1125 Colonel By Drive, Ottawa, ON K1S 5B6, (2)Department of Geosciences, Boise State University, Boise, ID 83725, (3)Department of Earth and Planetary Sciences, Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218, (4)Department of Earth, Environmental, and Planetary Sciences, Brown University, Providence, RI 02912
9-2
8:20 AM
CHANGING SEAWATER CARBON ISOTOPE COMPOSITIONS AT THE EDIACARAN-CAMBRIAN BOUNDARY PRESERVED DUE TO EARLY MARINE DIAGENESIS IN SOUTHWESTERN LAURENTIA
LONSDALE, Mary1, AHM, Anne-Sofie C.2, NELSON, Lyle L.3, THOMPSON, Jacob W.4, HIGGINS, John A.5 and SMITH, Emily F.1, (1)Department of Earth and Planetary Sciences, Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218, (2)Department of Earth and Ocean Sciences, University of Victoria, Victoria, BC V8P 5C2, Canada, (3)Earth and Planetary Sciences, Carleton University, 2201 Herzberg Laboratories, Ottawa, ON K1S 5B6, Canada, (4)Baltimore Polytechnic High School, Baltimore, MD 21209, (5)Department of Geosciences, Princeton University, Princeton, NJ 08544
9-3
8:35 AM
Withdrawn
9-4
8:50 AM
WAS EARTH’S OLDEST MINERAL COLLECTOR A CNIDARIAN? MORPHOLOGICAL, MINERALOGICAL, AND MICROSTRUCTURAL ANALYSIS OF SALTERELLA
VAYDA, Prescott1, XIAO, Shuhai1, KELLER, Noah1, STRAUSS, Justin2, LONSDALE, Mary C.3 and HAGEN, Amy1, (1)Department of Geosciences, Virginia Tech, 926 West Campus Drive, Blacksburg, VA 24061, (2)Department of Earth Sciences, Dartmouth College, HB 6105, Fairchild Hall, Hanover, NH 03755, (3)Department of Earth and Planetary Sciences, Johns Hopkins University, 3400 N. Charles Street, Baltimore, MD 21218
9-5
9:05 AM
Withdrawn
9-6
9:20 AM
Withdrawn
 
9:35 AM
Break
9-7
9:50 AM
UNUSUAL IRON CYCLING AND REDOX CONDITIONS IN THE LOWER CAMBRIAN HARKLESS FORMATION
HAGEN, Amy1, GILL, Benjamin1, PRUSS, Sara B.2 and VAYDA, Prescott1, (1)Department of Geosciences, Virginia Tech, 926 West Campus Drive, Blacksburg, VA 24061, (2)Department of Geosciences, Smith College, Northampton, MA 01063
9-8
10:05 AM
PRECISE U-PB ZIRCON DATE SUCCESSION THROUGH FOSSILIFEROUS AVALONIAN LOWER–MIDDLE CAMBRIAN BOUNDARY INTERVAL AND EVALUATION OF THE MIAOLINGIAN AS A GLOBAL CAMBRIAN SERIES
LANDING, Ed, 125 Manning Blvd., Albany, NY 12203, SCHMITZ, Mark D., Department of Geosciences, Boise State University, Boise, ID 83725, WESTROP, Stephen R., Oklahoma Museum of Natural History and School of Geology & Geophysics, Univ of Oklahoma, Norman, OK 73072 and GEYER, Gerd, Institut für Geographie und Geologie, Universität Würzburg, Am Hubland, Würzburg, 97074, Germany
9-9
10:20 AM
THE MID-CAMBRIAN MARJUM SOFT-BODIED BIOTA – A FOSSIL TREASURE TROVE IN THE WEST DESERT OF UTAH
LEROSEY-AUBRIL, Rudy1, COLEMAN, Robert2, DEL MOURO, Lucas3, GAINES, Robert R.4, PARRY, Luke5, SKABELUND, Jacob6 and ORTEGA-HERNANDEZ, Javier1, (1)Department of Organismic & Evolutionary Biology and Museum of Comparative Zoology, Harvard University, 26 Oxford Street, Cambridge, MA 02138, (2)No affiliation, Round Lake Beach, IL 60073, (3)Institute of Geosciences, University of São Paulo, São Paulo, 05508-080, Brazil, (4)Geology Department, Pomona College, 185 East Sixth Street, Claremont, CA 91711, (5)Centre for Life’s Origins & Evolution, Department of Genetics, Evolution & Environment, University College London, London, WC1E 6BT, United Kingdom, (6)Not Affiliated, Wellsville, UT UT 84339
10:35 AM
LATE CAMBRIAN AND EARLY ORDOVICIAN TRILOBITES FROM THE SOUTHERN SHAN STATE, MYANMAR
BALOGH-ZANIN, Horus, Earth & Planetary Sciences, University of California, Riverside, 900 University Ave, Riverside, CA 92521, WERNETTE, Shelly, Geography & Environmental Studies, Texas State University, San Marcos, TX 78666, MYROW, Paul, Department of Geology, Colorado College, Colorado Springs, CO 80903, AUNG, Aye Ko, East Dagon Township, Yangon 11451, Myanmar and HUGHES, Nigel C., Earth and Planetary Sciences, University of California- Riverside, Riverside, CA 92521
10:50 AM
ECOLOGICAL NOVELTY AT THE START OF THE CAMBRIAN AND ORDOVICIAN RADIATIONS OF ECHINODERMS
NOVACK-GOTTSHALL, Philip1, PURCELL, Jack Nathan1, SULTAN, Ali2, RANJHA, Isa1, DELINE, Bradley3 and SUMRALL, Colin4, (1)Biological Sciences, Benedictine University, 5700 College Road, Lisle, IL 60532, (2)Biological Sciences, Benedictine University, 5700 College Road, Lisle, IL 60532; School of Information, University of Michigan, Ann Arbor, MI 48109, (3)Department of Natural Sciences, University of West Georgia, 1601 Maple St, Carrollton, GA 30118, (4)Department of Earth and Planetary Sciences, University of Tennessee, 602 Strong Hall, 1621 Cumberland Avenue, Knoxville, TN 37996
11:05 AM
TESTING THE HYDRODYNAMIC BEHAVIOUR OF THE FIRST SWIMMING APEX PREDATORS – COMPARISONS BETWEEN CAMBRIAN AND ORDOVICIAN RADIODONTS
FERNANDEZ, Martin, Department of Earth and Environmental Sciences, Syracuse University, Heroy Geology Lab, Syracuse, NY 13244, PATES, Stephen, Department of Zoology, University of Cambridge, Cambridge, CB2 3EQ, United Kingdom, ORTEGA-HERNANDEZ, Javier, Department of Organismic and Evolutionary Biology and Museum of Comparative Zoology, Harvard University, Cambridge, MA 02138 and NANGLU, Karma, Harvard University, 26 Oxford Street, Cambridge, MA 02138
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