2009 Portland GSA Annual Meeting (18-21 October 2009)
Session No. 265 Wednesday, 21 October 2009
1:30 PM-5:30 PM, Oregon Convention Center: Portland Ballroom 255

Paleontology: Development & Morphology

Andrew Webber and Holly A. Schreiber, Presiding
 Paper #Start Time
265-11:30 PM HOW PLASTIC IS VENDOBIONTA MORPHOLOGY? A GEOMETRIC MORPHOMETRIC STUDY OF TWO GROUPS OF PTERIDINIUM FROM THE LATEST NEOPROTEROZOIC: MEYER, Michael, Department of Geology, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, mike.meyer.geo@gmail.com and HARRIES, Peter J., Department of Geology, University of South Florida, 4202 E. Fowler Ave., SCA 528, Tampa, FL 33620
265-21:45 PM ONTOGENY AND ASEXUAL REPRODUCTION OF DISCOIDAL EDIACARAN ORGANISMS: WHY SO MANY DISCS BUT SO FEW WITH FRONDS?: XIAO, Shuhai1, BYKOVA, Natasha2, GRAZHDANKIN, Dmitri2, KAUFMAN, Alan J.3, NAGOVITSIN, Konstantin2, KOCHNEV, Boris2, PEEK, Sara3, and ROGOV, Vladimir2, (1) Department of Geosciences, Virginia Tech, Blacksburg, VA 24061, xiao@vt.edu, (2) Russian Academy of Science, Novosibirsk Branch, Institute of Geology of Petroleum and Gas, Novosibirsk, 630090, Russia, (3) Geology Department, University of Maryland, College Park, MD 20742
265-32:00 PM CAMBROTHYRA AMPULLIFORMIS, AN UNUSUAL COELOSCLERITOPHORAN FROM THE LOWER CAMBRIAN OF SHAANXI PROVINCE, CHINA: MOORE, John L., Department of Earth Science, University of California, Santa Barbara, Santa Barbara, CA 93106, jlmoore@umail.ucsb.edu, PORTER, Susannah M., Earth Science, University of California at Santa Barbara, Santa Barbara, CA 93106, STEINER, Michael, Freie Universität Berlin, Institut für Geologische Wissenschaften, FR Paläontologie, Malteserstraße 74-100, Haus D, Berlin, 12249, Germany, and LI, Guoxiang, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing, 210008, China
265-42:15 PM THEORETICAL DEVELOPMENTAL MORPHOLOGY AND MORPHOSPACE OCCUPANCY. AN EXAMPLE WITH TRILOBITE CRANIDIA: GERBER, Sylvain, Department of Biology and Biochemistry, The University of Bath, Claverton Down, Bath, BA2 7AY, England, s.gerber@bath.ac.uk and HOPKINS, Melanie J., Department of Geophysical Sciences, University of Chicago, 5734 S. Ellis Ave, Chicago, IL 60637
265-52:30 PM METABOLIC RATE SCALING OF THE TRILOBITE ELDREDGEOPS RANA: DEPTOLA, Travis J., Department of Geosciences, The Pennsylvania State University, University Park, PA 16802, deptotx05@juniata.edu, POWELL, Matthew G., Department of Geology, Juniata College, 1700 Moore St, Huntingdon, PA 16652, and GLAZIER, Douglas S., Department of Biology, Juniata College, 1700 Moore St, Huntingdon, PA 16652
265-62:45 PM EVOLUTIONARY LABILITY OF INTEGRATION IN CAMBRIAN PTYCHOPARIOID TRILOBITES: WEBSTER, Mark, Dept. of Geophysical Sciences, University of Chicago, 5734 South Ellis Avenue, Chicago, IL 60637, mwebster@geosci.uchicago.edu and ZELDITCH, Miriam L., Museum of Paleontology, Univ of Michigan, 1109 Geddes Road, Ann Arbor, MI 48109
265-73:00 PM MORPHOLOGIC CONSTRAINTS AND THE RISE OF THE MYELODACTYLIDS; A REEXAMINATION OF EARLY PALEOZOIC CRINOID DISPARITY: DELINE, Bradley, Department of Geosciences, University of West Georgia, 1601 Maple St, Carrollton, GA 30118, bdeline@westga.edu and AUSICH, William, School of Earth Sciences, Ohio State University, 155 S Oval Mall, Columbus, OH 43210-1398
265-83:15 PM A NEW VIEW OF RHENOPYRGID EDRIOASTEROIDS – EVIDENCE FROM THE SILURIAN OF ARGENTINA: SUMRALL, C.D., Department of Earth and Planetary Sciences, University of Tennessee, 1412 Circle Drive, Knoxville, TN 37996, csumrall@utk.edu, HEREDIA, Susana, CONICET, Instituto de Investigaciones Mineras, Universidad de San Juan, San Juan, 5400, Argentina, and RODRÍGUEZ, Cecilia M., CONICET - IANIGLA (CRICYT), Mendoza, 5500, Argentina
265-93:30 PM MORPHOLOGICAL VARIABILITY WITHIN AND BETWEEN TWO RECENT RHYNCHONELLIDE (BRACHIOPODA) SPECIES AS MODELED BY ELLIPTICAL FOURIER ANALYSIS: SCHREIBER, Holly A.1, CARLSON, Sandra J.1, FITZGERALD, Paul C.2, and ROOPNARINE, Peter D.3, (1) Department of Geology, University of California, Davis, One Shields Ave, Davis, CA 95616, haschultz@ucdavis.edu, (2) Department of Biology, Northern Virginia Community College, 8333 Little River Turnpike, Annandale, VA 22003, (3) Invertebrate Zoology & Geology, California Academy of Sciences, 55 Concourse Dr, Golden Gate Park, San Francisco, CA 94118
 3:45 PM Break
265-104:00 PM THE ROLE OF GEOGRAPHIC VARIATION IN INTERPRETING STRATIGRAPHIC PATTERNS OF MORPHOLOGICAL CHANGE: WEBBER, Andrew and HUNDA, Brenda R., Collections and Research, Cincinnati Museum Center, 1301 Western Avenue, Cincinnati, OH 45203, webbera1@nku.edu
 4:15 PM Break
265-114:30 PM HETEROCHRONY IN THE CENOZOIC TURRITELLINE GASTROPODS OF NEW ZEALAND: SMITH, Ursula E., Department of Earth and Atmospheric Sciences, Cornell University, Ithaca, NY 14853, ues4@cornell.edu
265-124:45 PM THE SAILING PEFORMANCE OF THE CRESTED PTERODACTYLOID TAPEJARA FROM THE EARLY CRETACEOUS OF BRAZIL: CHATTERJEE, Sankar, Geosciences, Texas Tech Univ, MS Box 41053, Lubbock, TX 79409-3191, sankar.chatterjee@ttu.edu, ALEXANDER, David E., Ecology & Evolutionary Biology, University of Kansas, 2041 Haworth Hall, 1200 Sunnyside Avenue, Lawrence, KS 66045, LIND, Richard, Mechanical & Aerospace Engineering, 231 Aerospace Building, Gainesville, FL 32611, and GEDEON, Andy, Museum, Texas Tech University, Lubbock, TX 79409
265-135:00 PM MORPHOMETRICS AND SYSTEMATICS OF HYOPSODUS (MAMMALIA, CONDYLARTHRA) FROM THE WASATCHIAN AND BRIDGERIAN EOCENE OF THE GREEN RIVER BASIN, WYOMING: ADAMS, John K.1, BARTELS, William S.1, and GUNNELL, Gregg F.2, (1) Department of Geological Sciences, Albion College, Albion, MI 49224, jkendalladams@uchicago.edu, (2) Division of Fossil Primates, Duke Lemur Center, Duke University, Durham, NC 27705
265-145:15 PM A RE-EXAMINATION OF CONCHOSTRACANS AS MODEL FOSSIL TAXA: AN INTEGRATED BIOLOGICAL AND PALEONTOLOGICAL APPROACH: ASTROP, Timothy I., Geology, University of Akron, Aubern Science and Engineering Center, Akron, OH 44325-3908, tia10@uakron.edu, PARK, Lisa, Geology and Environmental Science, University of Akron, 302 Buchtel Ave, Akron, OH 44325, and WEEKS, Stephen C., Biology, University of Akron, Aubern Science and Engineering Center, Akron, OH 44325-3908

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