2009 Portland GSA Annual Meeting (18-21 October 2009)

Session No. 220
Wednesday, 21 October 2009: 8:00 AM-12:00 PM
Portland Ballroom 255 (Oregon Convention Center)

Paleontology: Phylogeny & Systematics

 

Nathan Jud and Sandra J. Carlson, Chairs
Paper #
Start Time
1
8:00 AM
NEW INSIGHTS INTO THE EVOLUTIONARY HISTORY AND BIOGEOGRAPHY OF THE EARLY CAMBRIAN OLENELLINE TRILOBITES
GAPP, I. Wesley1, LIEBERMAN, Bruce1, POPE, Michael C.2 and DILLIARD, Kelly3, (1)Geology, University of Kansas, 1475 Jayhawk Blvd, 120 Lindley Hall, Lawrence, KS 66045, (2)Department of Geology and Geophysics, Texas A&M University, College Station, TX 77843, (3)Department of Physical Sciences and Mathematics, Wayne State College, 1111 Main Street, Wayne, NE 68787, wes123@ku.edu, wes123@ku.edu
2
8:15 AM
PHYLOGENETICS OF THE EARLY ORDOVICIAN PLIOMERID TRILOBITES PROTOPLIOMERELLA, PSEUDOCYBELE, AND RELATED TAXA: UNRAVELLING THE BASE OF THE CHEIRUROIDEAN RADIATION
MCADAMS, Neo E.B. and ADRAIN, Jonathan M., Department of Earth and Environmental Sciences, University of Iowa, 115 Trowbridge Hall, Iowa City, IA 52242, neo-buengermcadams@uiowa.edu, neo-buengermcadams@uiowa.edu
3
8:30 AM
PHYLOGENETIC ANALYSIS OF LATE ORDOVICIAN NORTH AMERICAN RHYNCHONELLID BRACHIOPOD GENERA LEPIDOCYCLUS, HYPSIPTYCHA AND HISCOBECCUS
SWISHER, Robert E., Geological Sciences, University of Oklahoma, Oklahoma Museum of Natural History and School of Geology & Geophysics, Norman, OK 73072 and STIGALL, Alycia L., Department of Geological Sciences and Ohio Center for Ecology and Evolutionary Studies, Ohio University, 316 Clippinger Lab, Athens, OH 45701, Robert.E.Swisher-1@ou.edu, Robert.E.Swisher-1@ou.edu
4
8:45 AM
SEPARATING THE CROWN FROM THE STEM: DEFINING BRACHIOPODA AND PAN-BRACHIOPODA DELINEATES STEM-BRACHIOPODS
CARLSON, Sandra J., Department of Geology, University of California, Davis, One Shields Ave, Davis, CA 95616 and COHEN, Bernard L., Faculty of Biomedical and Life Sciences, University of Glasgow, Glasgow, G12 8QQ, Scotland, sjcarlson@ucdavis.edu, sjcarlson@ucdavis.edu
5
9:00 AM
A FINE STRUCTURAL COMPARISON OF SELECTED CLADE E ALLOGROMIID FORAMINIFERA: COULD ULTRASTRUCTURE HOLD PHYLOGENETIC CLUES?
ALTIN, Deniz Z., Department of Geology, University of Georgia, 210 Field Street, Athens, GA 30602 and GOLDSTEIN, Susan T., Department of Geology, University of Georgia, Athens, GA 30602, daltin@uga.edu, daltin@uga.edu
6
9:15 AM
EARLY DIVERSIFICATION IN ECHINODERMATA
PARSLEY, Ronald L., Department of Earth and Environmental Sciences, Tulane University, New Orleans, LA 70118, parsley@tulane.edu, parsley@tulane.edu
7
9:30 AM
A SPECIES-LEVEL PHYLOGENY OF ARCHAEOCIDARID ECHINOIDS FROM NORTH AMERICA: IMPLICATIONS FOR BASIN EXCHANGE AND ECOLOGICAL INTERACTIONS
SCHNEIDER, Chris L., Alberta Geological Survey, 4999 98th Av, Edmonton, AB T6B2X3, chris.schneider@ercb.ca, chris.schneider@ercb.ca
 
9:45 AM
Break
8
10:00 AM
TAXONOMIC REPLACEMENT AND BODY SIZE EVOLUTION IN OLIGO-MIOCENE CANIDS
ORCUTT, John D., Geology, Cornell College, 600 1st St. SW, Mt. Vernon, IA 52314, jorcutt@cornellcollege.edu, jorcutt@cornellcollege.edu
9
10:15 AM
NEW OBSERVATIONS ON THE EARLY DEVONIAN FLORAS OF THE BEARTOOTH BUTTE FORMATION (WYOMING)
CARUSO, Joseph A., DATTOLA, Melissa, NAUMAN, Brandon and TOMESCU, Alexandru M.F., Department of Biological Sciences, Humboldt State University, 1 Harpst St, Arcata, CA 95521, atheross@yahoo.com, atheross@yahoo.com
10
10:30 AM
PENNSYLVANIAN CONIFEROPHYTE FORESTS IN GROWTH POSITION REPRESENT PROBABLE SABKHA ENVIRONMENTS IN TROPICAL WESTERN PANGEA
JUD, Nathan A., Program in Behavior, Ecology, Evolution and Systematics, University of Maryland College Park, 4112 Plant Sciences Building, University of Maryland College Park, College Park, MD 20742, CHANEY, Dan S., Deptartment of Paleobiology, Smithsonian Institution, NMNH Smithsonian Institution, Washington, DC 20560, DIMICHELE, William A., Department of Paleobiology, NMNH Smithsonian Institution, Washington, DC 20560, FALCON-LANG, Howard, Department of Earth Sciences, Royal Holloway, University of London, Egham, TW20 0EX, UK, England, LUCAS, Spencer, New Mexico Museum of Natural History, 1801 Mountain Road N.W, Albuquerque, NM 87104 and NELSON, John, Illinois State Geol Survey, Champaign, IL 61820, njud@umd.edu, njud@umd.edu
11
10:45 AM
“DESCENT WITH MODIFICATION”, TRANSFORMATIONAL SERIES, AND PHYLOGENETIC ANALYSES TO INFER THE EVOLUTION OF MODERN CONIFER FAMILIES
ROTHWELL, Gar W.1, MAPES, Gene1, STOCKEY, Ruth A.2, HILTON, Jason3 and BATEMAN, Richard M.4, (1)Department of Environmental and Plant Biology, Ohio University, Athens, OH 45701, (2)Biological Sciences, University of Alberta, B-428 Biological Sciences Building, Edmonton, AB T6G 2E9, Canada, (3)School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, United Kingdom, (4)Jodrell Laboratory, Royal Botanic Gardens Kew, Richmond, Richmond, TW9 3DS, United Kingdom, rothwell@ohio.edu, rothwell@ohio.edu
12
11:00 AM
CHANGING FUNCTIONAL ROLES AND THE EVOLUTION OF CONIFER REPRODUCTIVE MORPHOLOGY
LESLIE, Andrew B., Department of Geophysical Sciences, University of Chicago, 5734 S. Ellis Avenue, Chicago, IL 60637, aleslie@uchicago.edu, aleslie@uchicago.edu
13
11:15 AM
PAOMU METASEQUOIA: THE LONELY SURVIVOR OF A LIVING FOSSIL
LENG, Qin1, YANG, Hong2, WANG, Li3 and LI, Chun-Xiang1, (1)Laboratory of Paleontology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Science, 39 Eastern Beijing Road, Nanjing, 210008, China, (2)Science and Technology, Bryant University, 1150 Douglas Pike, Smithfield, RI 02917, (3)Graduate School of the Chinese Academy of Sciences, Beijing, 100049, China, qleng@bryant.edu, qleng@bryant.edu
14
11:30 AM
LEAF ECONOMIC TRAITS FROM FOSSILS SUPPORT A WEEDY ORIGIN FOR ANGIOSPERMS
ROYER, Dana L., Dept. of Earth and Environmental Sciences, Wesleyan Univ, Middletown, CT 06459, PEPPE, Daniel J., Dept. of Geology, Baylor Univ, Waco, TX 76798, MILLER, Ian M., Dept. of Earth Sciences, Denver Museum of Nature and Science, Denver, CO 80205 and HICKEY, Leo J., Dept. of Geology and Geophysics, Yale Univ, New Haven, CT 06520, droyer@wesleyan.edu, droyer@wesleyan.edu
15
11:45 AM
Withdrawn