GSA Annual Meeting in Seattle, Washington, USA - 2017

Session No. 306
Wednesday, 25 October 2017: 8:00 AM-12:00 PM
Room 604 (Washington State Convention Center)

T62. Ancient Environments of South America

Paleontological Research Institution; Paleontological Society; GSA Sedimentary Geology Division
Camilla Crifò and Regan E. Dunn, Advocates
8:00 AM
ORIGIN OF PALEOVALLEYS ON THE NORTHEAST RIO GRANDE DO SUL SHIELD (BRAZIL): IMPLICATIONS FOR THE EXTENT OF LATE PALEOZOIC GLACIATION IN WEST-CENTRAL GONDWANA
FEDORCHUK, Nicholas D.1, ISBELL, John L.1, GRIFFIS, Neil2, MONTAÑEZ, Isabel P.2, VESELY, Fernando3, IANNUZZI, Roberto4, MUNDIL, Roland5, YIN, Qing-zhu2 and ROSA, Eduardo L.M.3, (1)Department of Geosciences, University of Wisconsin-Milwaukee, Milwaukee, WI 53201, (2)Department of Earth and Planetary Sciences, University of California, Davis, One Shields Dr., Davis, CA 95616, (3)Universidade Federal do Paraná, Curitiba, Brazil, (4)Departamento de Paleontologia e Estratigrafia, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 9500, Porto Alegre, RS, 91.509-900, Brazil, (5)Berkeley Geochronology Center, 2455 Ridge Rd, Berkeley, CA 94709, fedorch2@uwm.edu
8:15 AM
THE ROLE OF THE NEOTROPICS IN THE EVOLUTION OF TRUE CRABS
LUQUE, Javier, Biological Sciences, University of Alberta, Edmonton, AB T6E 2E9, Canada; Smithsonian Tropical Research Institute, Panama, 0843-03092, Panama, luque@ualberta.ca
8:30 AM
CRETACEOUS-PALEOGENE MOSQUITO FERNS (AZOLLA) FROM PATAGONIA (CHUBUT PROVINCE, ARGENTINA)
HERMSEN, Elizabeth J., Department of Environmental and Plant Biology, Ohio University, Athens, OH 45701, JUD, Nathan A., School of Integrative Plant Science, Plant Biology Section, Cornell University, L.H. Bailey Hortorium, Ithaca, NY 14853 and GANDOLFO, Maria A., Plant Biology Section, Cornell University, L. H. Bailey Hortorium, 410 Mann Library, Ithaca, NY 14853, hermsen@ohio.edu
8:45 AM
SEDIMENTARY RECORD OF ANDEAN MOUNTAIN BUILDING, TOPOGRAPHIC BARRIERS, AND PALEODRAINAGE PATTERNS (Invited Presentation)
HORTON, Brian K., Department of Geological Sciences and Institute for Geophysics, Jackson School of Geosciences, University of Texas at Austin, Austin, TX 78712, horton@jsg.utexas.edu
9:05 AM
NEW EVIDENCE FOR LONG-LIVED CENOZOIC TOPOGRAPHY IN THE PATAGONIAN ANDES
AUERBACH, David1, BRANDON, Mark T.1, HREN, Michael T.2, HOURIGAN, Jeremy K.3, PACINI, Astrid1, COSGROVE, Martha1, MIDZIK, Maya1, GARREAUD, René4 and METZGER, Christine5, (1)Geology & Geophysics, Yale University, New Haven, CT 06520, (2)Center for Integrative Geosciences & Dept. of Chemistry, University of Connecticut, 354 Mansfield Road, Storrs, CT 06269, (3)Earth and Planetary Sciences, University of California, Santa Cruz, 1156 High St, Santa Cruz, CA 95064, (4)Departamento de Geofisica, Universidad de Chile, Blanco Encalada 2002, Santiago, Chile, (5)Critical Studies, California College of the Arts, 1111 8th Ave, San Francisco, CA 94103, david.auerbach@yale.edu
 
9:20 AM
Discussion
9:30 AM
EVOLUTIONARY PROCESSES IN THE FOSSIL RECORD: PATAGONIA AS A CASE STUDY (Invited Presentation)
GANDOLFO, Maria A., Plant Biology Section, Cornell University, L. H. Bailey Hortorium, 410 Mann Library, Ithaca, NY 14853 and ZAMALOA, Maria C., Departamento de Ecologia, Genetica y Evolucion, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Intendente Guiraldes 2620, Buenos Aires, C1428EHA, Argentina, MAG4@CORNELL.EDU
9:50 AM
THE PIEDRA CHAMANA FOSSIL WOODS AND LEAVES (39 MA, PERU): A RECORD OF LOWLAND TROPICAL VEGETATION DURING THE LATE MIDDLE EOCENE
WOODCOCK, Deborah W., Marsh Institute of Clark University, 950 Main Street, Worcester, MA 01610 and MEYER, Herbert W., National Park Service, Florissant Fossil Beds National Monument, PO Box 185, Florissant, CO 80816, dwoodcock@clarku.edu
10:05 AM
THE OLDEST KNOWN MENISPERMACEAE ARE FROM PATAGONIA, SOUTH AMERICA
JUD, Nathan A., School of Integrative Plant Science, Plant Biology Section, Cornell University, L.H. Bailey Hortorium, Ithaca, NY 14853 and GANDOLFO, Maria A., Plant Biology Section, Cornell University, L. H. Bailey Hortorium, 410 Mann Library, Ithaca, NY 14853, nathan.jud@cornell.edu
 
10:20 AM
Discussion
10:30 AM
ECOLOGY AND CLIMATE OF THE EARLY MIOCENE SANTA CRUZ FORMATION, ARGENTINA
TRAYLER, Robin B.1, KOHN, Matthew J.2, BARGO, Susana3, CUITIÑO, José I.4, KAY, Richard F.5, STRÖMBERG, Caroline A.E.6 and VIZCAÍNO, Sergio F.3, (1)Geosciences, Boise State University, 1910 University Drive, Boise, ID 83725; Department of Geosciences, Boise State University, 1910 University Drive, Boise, ID 83725, (2)Dept. of Geosciences, Boise State University, 1910 University Dr, Boise, ID 83725; Geosciences, Boise State University, 1910 University Drive, Boise, ID 83725, (3)División Paleontología de Vertebrados, Museo de La Plata, Unidades de Investigación Anexo Museo, Av. 60 y 122, 1900, La Plata, Argentina, (4)3IPGP, CENPAT-CONICET, Boulevard Almirante Brown 2915, Puerto Madryn U9120ACD, Chubut, Argentina, (5)Evolutionary Anthropology, Duke University, Box 90383, Durham, NC 27708, (6)Department of Biology, University of Washington, 24 Kincaid Hall, Box 351800, Seattle, WA 98195-1800, robintrayler@boisestate.edu
10:45 AM
FOSSIL PHYTOLITH ASSEMBLAGES FROM SOUTHERN PATAGONIA INDICATE CHANGING HABITATS DURING THE MIDDLE MIOCENE CLIMATIC OPTIMUM
CRIFÒ, Camilla1, BARGO, Susana2, CUITIÑO, José I.3, KAY, Richard F.4, KOHN, Matthew J.5, TRAYLER, Robin B.6, VIZCAÍNO, Sergio F.2, ZUCOL, Alejandro F.7 and STROMBERG, Caroline A.E.8, (1)Biology, University of Washington, 24 kincaid Hall PO BOX 351800, Seattle, WA 98195-1800, (2)División Paleontología de Vertebrados, Museo de La Plata, Unidades de Investigación Anexo Museo, Av. 60 y 122, 1900, La Plata, Argentina, (3)Instituto Patagónico de Geología y Paleontología (IPGP), CCT CONICET-CENPAT, Boulevard Brown 2915, (U9120ACD), Puerto Madryn, Argentina, (4)Evolutionary Anthropology, Duke University, Box 90383, Durham, NC 27708, (5)Geosciences, Boise State University, 1910 University Drive, Boise, ID 83725, (6)Department of Geosciences, Boise State University, 1910 University Drive, Boise, ID 83725, (7)Laboratorio de Paleobotánica, CICYTTP-Diamante (CONICET), Matteri y España, 3105, Diamante, Argentina, (8)Department of Biology, University of Washington, 24 Kincaid Hall, Box 351800, Seattle, WA 98195-1800, crifoc@uw.edu
11:00 AM
PALEOBOTANICAL RECORD FROM THE DESCANSO-YAURI BASIN, PERU: INSIGHTS INTO THE NEOGENE ELEVATION HISTORY OF THE CENTRAL ANDEAN PLATEAU
MARTÍNEZ, Camila1, CREPET Sr., William1, JARAMILLO, Carlos2, ALIAGA, Angélica3 and MORENO, Federico4, (1)Plant Biology, Cornell University, 412 Mann Library Building, Ithaca, NY 14853, (2)Smithsonian Tropical Research Institute, Unit 0948, APO AA 34002, Balboa, Ancon, 0843-03092, Panama, (3)Departamento de Paleontología de Vertebrados, Museo de Historia Natural Lima- UNMSM, Av. Arenales 1256, Jesús María, Lima, 00000, Peru, (4)Earth & Environmental Sciences, University of Rochester, 227 Hutchison Hall, University of Rochester, Rochester, NY 14627; Smithsonian Tropical Research Institute, Unit 0948, APO AA 34002, Balboa, Ancon, 0843-03092, Panama, cm695@cornell.edu
11:15 AM
COMPARING COMMUNITY STRUCTURE AND HABITAT OF TWO MIDDLE MIOCENE NEOTROPICAL FOSSIL LOCALITIES USING ECOLOGICAL DIVERSITY ANALYSIS (EDA)
CATENA, Angeline M.1, SAMEH, Melissa1 and CROFT, Darin A.2, (1)Department of Biology, Case Western Reserve University, 10900 Euclid Ave, Cleveland, OH 44106-4930, (2)Department of Anatomy, Case Western Reserve University, 10900 Euclid Ave, Cleveland, OH 44106-4930, Angeline.Catena@gmail.com
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