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Botanical Society of America

1997 Meeting

Montréal, Québec, August 3-7

Program for the Paleobotanical Section, Botanical Society of America

PALEOBOTANICAL SECTION OF BSA


MONDAY, AUGUST 4, 1997

8:25 AM - 12:00 PM

Presiding: GARLAND R. UPCHURCH, JR., Southwest Texas State University, San Marcos.

CONTRIBUTED PAPERS: Paleobotanical Section - Isabel Cookson Student Award Session.

8:25 BSA- UPCHURCH, GARLAND R., JR. Introduction and comments from the Chair.

8:30 BSA- KOTYK, MICHELE E. University of Saskatchewan, Saskatoon. Late Silurian and Early Devonian land plants from Bathurst Island, Canadian Arctic Archipelago.

8:45 BSA- CORDI, JENNIFER* and STEIN, WILLIAM E. Binghamton University, Binghamton. A reinvestigation of Cladoxylon dawsonii Read: new data question taxonomic and phylogenetic distinctions between the Devonian Cladoxylopsida and Iridopteridales.

9:00 BSA- PHIPPS, CARLIE J.*, AXSMITH, BRIAN J., TAYLOR, THOMAS N., and TAYLOR, EDITH L. University of Kansas, Lawrence. Permineralized fern sporangia from the Triassic of Antarctica.

9:15 BSA- AXSMITH, BRIAN J.* and TAYLOR, THOMAS N. University of Kansas, Lawrence. New conifers from the Early Mesozoic of eastern North America.

9:30 RECESS

9:45 BSA- SERBET, R. Ohio University, Athens. Using fossils to resolve cladistic relationships: Cupressaceous/taxodiaceous conifers from the Upper Cretaceous (Maastrichtian) Badlands of southern Alberta, Canada.

10:00 BSA- HOPKINS, DENNIS J., JR.* and JOHNSON, KIRK R. Denver Museum of Natural History, Denver. Description of a newly discovered and nearly complete Paleocene cycad from the Denver Basin, Colorado.

10:15 BSA- PÉREZ-HERNÁNDEZ, BALAM R.*, RODRÍGUEZ-DE LA ROSA, RUBEN A., and CEVALLOS FERRIZ, SERGIO R.S. Ciudad Universitaria, and Instituto de Geología, Del. Coyoacan, México. Permineralized infructescence from the Cerro del Pueblo Formation (Campanian), near Saltillo, Coahuila, Mexico: Phytolaccaceae.

10:30 BSA- HERNÁNDEZ-CASTILLO, GENARO R.* and CEVALLOS-FERRIZ, SERGIO R.S. Ciudad Universitaria, and Instituto de Geología, Del. Coyoacan, México. A permineralized plant with Haloragaceae affinity from the Upper Cretaceous of Sonora, Mexico.

10:45 RECESS

11:00 BSA- CALL, VICTOR* and DILCHER, DAVID. Florida Museum of Natural History, Gainsville. Morphology and cuticle of the Cretaceous winged infructescence Tricalycites.

11:15 BSA- VELASCO-DE LEÓN, PATRICIA* and CEVALLOS-FERRIZ, SERGIO R.S. Ciudad Universitaria, and Instituto de Geología, Del. Coyoacan, México. Leaves of Cercocarpus (Rosaceae) in Tertiary sediments of Tepexi de Rodríguez, Puebla, Mexico.

11:30 BSA- RAMÍREZ-GARDUÑO, JOSÉ LUIS* and CEVALLOS-FERRIZ, SERGIO R.S. Ciudad Universitaria, and Instituto de Geología, Del. Coyoacan, México. A diverse association of Anacardiaceae in Oligocene strata of Tepexi de Rodriguez, Puebla, Mexico.

11:45 BSA- BORGARDT, SANDRA J. Arizona State University, Tempe. Fruit development in fossil and living Quercus (Fagaceae) and its taxonomic value.

9:00 AM - 5:00 PM

POSTER SESSION: Paleobotanical Section - Student Posters.

BSA- FALDER, AMY B.*, MAPES, GENE, ROTHWELL, GAR W., MAPES, ROYAL H., and DOGUZHAEVA, LARISA A. Ohio University, Athens, and Paleontological Institute Russian Academy of Sciences, Moscow, Russia. Pityostrobus cone from Lower Cretaceous (Aptian) marine sediments in Russia.

BSA- MAPES, ROYAL H., MAPES, GENE, SCOTT, ANDREW C., and MAYBERRY, ECHO.* Ohio University, Athens, and Royal Holloway University, London. An unusual Early Permian plant and marine invertebrate assemblage in central Texas.


1:30 PM - 5:00 PM

Presiding: WILSON A. TAYLOR, University of Wisconsin, Eau Claire.

CONTRIBUTED PAPERS: Paleobotanical Section - Isabel Cookson Student Award (cont.).

1:30 BSA- LUPIA, RICHARD#. University of Chicago, Chicago. Angiosperm provinciality in the Cretaceous of North America.

1:45 BSA- VAN BOSKIRK, M. CRAIG#. Yale University, New Haven. The paleofloristics and systematic character of the Cretaceous (Lower Campanian) Eagle Formation, Wyoming and Montana, U.S.A.

2:00 BSA- RODRÍGUEZ-DE LA ROSA, RUBÉN A.#*, and CEVALLOS-FERRIZ, SERGIO R.S. Ciudad Universitaria, and Instituto de Geología, Del. Coyoacan, México. Plant-animal interactions during the Late Cretaceous: an example from the Cerro del Pueblo Formation (Campanian) of southeastern Coahuila, México.

2:15 BSA- BERALDI-CAMPESI, HUGO B.#*, CHACÓN-BACA, ELIZABETH, and CEVALLOS-FERRIZ, SERGIO R.S. Ciudad Universitaria, and Instituto de Geología, Del. Coyoacan, México. Microfossils of an Upper Cretaceous (Campanian) vulcano-sedimentary sequence in Sonora, Mexico.

2:30 BSA- HOUSE, RUSSELL F.#* and HIGGINBOTHAM, JERI W. Jacksonville State University, Jacksonville. C.C. Pond, a Quaternary pollen sequence from Talladega County, Alabama.

2:45 RECESS

3:00 BSA- TAYLOR, WILSON A. University of Wisconsin, Eau Claire. Cryptospore wall ultrastructure - summary and significance.

3:15 BSA- BERRY, CHRISTOPHER M.*, CORDI, JENNIFER, and STEIN WILLIAM E. University of Wales, Cardiff, and Binghampton University, Binghampton. Morphological models of Devonian Iridopteridales.

3:30 BSA- NIKLAS, KARL J. Cornell University, Ithaca. A biomimetic model for early land plant evolution.

3:45 BSA- MEYER-BERTHAUD, BRIGITTE*, WENDT, JOBST, and GALTIER, JEAN. Université Montpellier II, Montpellier, and Institut und Museum für Geologie und Paläontologie des Universität, Tübingen. First record of a diverse assemblage of Callixylon from the Upper Devonian of Gondwana.

4:00 RECESS

4:15 BSA- SCHECKLER, STEPHEN E.*, SNIGIREVSKAYA, NATALIA S., andD HILL, STEWART A. Virginia Polytechnic Institute and State University, Blacksburg, and Komarov Botanical Institute, Saint Petersburg, Russia. Endosporic gametophytes of the heterosporous Late Devonian (Frasnian) progymnosperm Archaeopteris archetypus (= A. obtusa).

4:30 BSA- CAI, CHONGYANG, CHITALEY, SHYA*, AND DOU, YAWEI. Nanjing Institute of Geology and Palaeontology Acad. Sinica, Nanjing, China, Cleveland Museum of Natural History, Cleveland, and National Bureau of Oceanography, Xiamen, China. Studies on some permineralized lycopsid remains from Upper Devonian of North Xinjiang, NW China.

4:45 BSA- CHITALEY, SHYA* and LI, CHENG-SEN. Cleveland Museum of Natural History, Cleveland, and Institute of Botany, Beijing, China. A herbaceous lycopsid recovered from the Upper Devonian Cleveland shale of Ohio, U.S.A.

6:00 PM - 10:00 PM

EVENING SOCIAL EVENTS

6:00 MIXER: Paleobotanical Section.

7:00 DINNER & AUCTION: Paleobotanical Section.


PALEOBOTANICAL SECTION OF BSA

TUESDAY, AUGUST 5, 1997


8:15 AM - 12:00 PM

Presiding: RUTH A. STOCKEY, University of Alberta, Edmonton

CONTRIBUTED PAPERS: Paleobotanical Section.

8:15 BSA- LI, HONGQI* and TAYLOR, DAVID W. Indiana University Southeast, New Albany. An actinodromous venation pattern in gigantopterids and its implication for a new structural classification of the group.

8:30 BSA- TAYLOR, DAVID W.* and LI, HONGQI. Indiana University Southeast, New Albany. Phylogenetic relationships of gigantopterids and their affinities to seed plants.

8:45 BSA- MAPES, GENE*, ROTHWELL, GAR W., and GRAUVOGEL-STAMM, LÉA. Ohio University, Athens, and Université Louis Pasteur, Strasbourg Cedex, France. Aethophyllum stipulare, an herbaceous Triassic conifer.

9:00 BSA- MCIVER, ELISABETH E. University of Saskatchewan, Saskotoon. The Cupressaceae: fossils and phylogeny.

9:15 BSA- LEPAGE, BEN A.* and AULENBACK, KEVIN R. University of Pennsylvania, Philadelphia, and Royal Tyrrell Museum of Paleontology, Drumheller. A new species of Taxodium (Taxodiaceae) from the Late Cretaceous (Maastrichtian) Horseshoe Canyon Formation, Alberta, Canada.

9:30 RECESS

9:45 BSA- STOCKEY, RUTH A.*, LEPAGE, BEN A., and PIGG, KATHLEEN B. University of Alberta, Edmonton, University of Pennsylvania, Philadelphia, and Arizona State University, Tempe. Permineralized fruits of Cornaceae (Mastixioideae) from the Middle Eocene Princeton chert of British Columbia.

10:00 BSA- PIGG, KATHLEEN B. Arizona State University, Tempe. Anatomically preserved Liquidambar-like infructescences (Hamamelidaceae) from the Middle Miocene Yakima Canyon flora of Washington, USA.

10:15 BSA- ERWIN, DIANE M.* and SCHORN, HOWARD E. University of California, Berkeley. Channel Ironwood (Lyonothamnus, Spiraeoideae, Rosaceae) in the Miocene of Nevada.

10:30 BSA- FIELDS, PATRICK F. Michigan State University, East Lansing. A review and addition to the remarkably sparse North American Tertiary foliar record of Cercis (Fabaceae, Caesalpinioideae).

10:45 RECESS

11:00 BSA- DOYLE, JAMES A.* and SANDERSON, MICHAEL J. University of California, Davis. Fossils, molecular clocks, and the age of angiosperms.

11:15 BSA- TAYLOR, EDITH L.*, TAYLOR, THOMAS N., and ISBELL, JOHN L. University of Kansas, Lawrence, and University of Wisconsin, Milwaukee. Evidence of Permian forests from the Shackleton Glacier area, Antarctica.

11:30 BSA- MCIVER, ELISABETH E. University of Saskatchewan, Saskatoon. Forest kill at the K-T boundary.

11:45 BSA- BOUCHER, LISA D.* and WING, SCOTT L. Smithsonian Institution, Washington, DC Relative abundance and diversity of plant groups in the Late Cretaceous: new data from the San Juan Basin, New Mexico.

1:00 PM - 5:00 PM SESSION Presiding: KATHLEEN M. PRYER, The Field Museum, Chicago

SYMPOSIUM: Relationships and Fossil History of Ferns.

Paleobotanical and Pteridological Sections. Cosponsored by ASPT, AFS, Canadian Botanical Association, Green Plant Phylogeny Research Coordination Group.

Organized by KATHLEEN M. PRYER, Department of Botany, The Field Museum, Roosevelt Road at Lake Shore Drive, Chicago, IL 60605-2496 (312-922-9410, ext. 724);

ALAN R. SMITH, University Herbarium, UC-Berkeley, 1001 Valley Life Sci. Bldg. #2465, Berkeley, CA 94720-2465 (510-643-1000);

GAR W. ROTHWELL, Department of Environmental and Plant Biology, Ohio University, Athens, Ohio 45701 (614-593-1129);

PAUL KENRICK, Department of Paleobotany, Swedish Museum of Natural History, Box 50007, S-104 05 Stockholm, Sweden (46-8-666-4143).

1:00 BSA- PRYER, KATHLEEN M. Introduction.

1:10 BSA- KENRICK, PAUL. Swedish Museum of Natural History, Stockholm. Early vascular plants and the origin of ferns

1:40 BSA- PHILLIPS, TOM L. and DIMICHELE, WILLIAM A.* University of Illinois, Urbana, and NMNH Smithsonian Institution, Washington, DC. Paleoecology of ferns, with emphasis on the Paleozoic and Mesozoic.

2:10 BSA- ROTHWELL, GAR W. Ohio Univerisity, Athens. The importance of fossils in reconstructing fern phylogeny.

2:40 BSA- HUELSENBECK, JOHN. University of California, Berkeley. Maximum likelihood estimation of phylogeny using stratigraphic data and the implications for combining diverse sources of data.

3:10 RECESS

3:30 BSA- WOLF, PAUL G.* and PRYER, KATHLEEN M. Utah State University, Logan, and The Field Museum, Chicago, IL. Multiple gene approaches to fern phylogeny: chloroplast and nuclear genes.

3:55 BSA- CONANT, DAVID S.*, STEIN, DIANA B., ATTWOOD, DEBORAH K., RAUBESON, LINDA A., PERERA, SAMANTHI, ZIMMER, ELIZABETH A., SWEERE, JENNIFER, WHITE, RICHARD A., TURNER, MELVIN D., NISHIDA, HARUFUMI, UEDA, KUNIHIKO, and PINTAUD, JEAN-CHRISTOPHE. Lyndon State College, Lyndonville, VT; Mt. Holyoke College, South Hadley, MA; Central Washington University, Ellensburg, WA; Smithsonian Institution, Washington, DC; Duke University, Durham, NC; Chuo University, Tokyo, Japan; Kanazawa University, Kanazawa, Japan; ORSTROM, Noumea, New Caledonia. A case study of the evolution of Cyatheaceae (tree ferns): comparing the fossil record with neobotanical evidence.

4:20 BSA- PRYER, KATHLEEN M.* and SMITH, ALAN R. The Field Museum, Chicago, IL, and University of California, Berkeley. Character evolution and fern phylogeny.

4:45 BSA- CRANE, PETER R. The Field Museum, Chicago, IL. Symposium summary and discussion.


PALEOBOTANICAL SECTION OF BSA

WEDNESDAY, AUGUST 6, 1997


8:15 AM - 12:00 PM

Presiding: ELISABETH A. WHEELER, North Carolina State University, Raleigh

CONTRIBUTED PAPERS: Paleobotanical Section.

8:15 BSA- CHANEY, DAN S.*, DIMICHELE, WILLIAM A., MAMAY, SERGIUS H., HOOK, ROBERT W., and NELSON, W. JOHN. Smithsonian Institution, Washington, DC, and Illinois State Geological Survey, Champaign. A new flora from the evaporite-bearing Blaine Formation (Pease River Group, Lower Permian) of King County, Texas.

8:30 BSA- BERTRAM, KARLA A.*, PIGG, KATHLEEN B., SCHORN, HOWARD E., and ERWIN, DIANE. Arizona State University, Tempe, and University of California, Berkeley. Middle Miocene flora from the Virgin Valley, northwestern, Nevada, USA.

8:45 BSA- GRAHAM, ALAN. Kent State University, Kent. New evidence on the origin of the north-temperate element in the northern Latin American biota.

9:00 BSA- SCHORN, HOWARD E.*, ERWIN, DIANE M., and GOOCH, NANCY L. University of California, Berkeley. The paleoecological significance of foliated axes of spruce (Picea A. Dietrich, Pinaceae) in the Neogene of Oregon.

9:15 RECESS

9:30 BSA- KNAUS, MARGARET J. University of Wisconsin, Eau Claire. A new combination of Genselia and new insights into possible developmental pathways of early Carboniferous photosynthetic units.

9:45 BSA- DUNN, KRISTI A., UPCHURCH, GARLAND R., JR.*, MCLEAN, ROBERT J.C., and FOLK, ROBERT L. Southwest Texas State University, San Marcos, and University of Texas, Austin. Biofilm enhancement of leaf fossilization potential: experimental evidence.

10:00 BSA- UPCHURCH, GARLAND R., JR.*, MARINO, BRUNO D., MONE, W.E., and MCELROY, MICHAEL B. Southwest Texas State University, San Marcos, and Harvard University, Cambridge. Carbon isotope ratios in extant and fossil plant cuticle.

10:15 BSA- MEDLYN, DAVID A.* and TIDWELL, WILLIAM D. Utah State University, Logan, and Brigham Young University, Provo. A generic and bibliographic review of the Mesozoic coniferous woods of North America.

10:30 BSA- WHEELER, ELISABETH A.* and LEHMAN, THOMAS M. North Carolina State University, Raleigh, and Texas Tech University, Lubbock. Cretaceous-Paleocene wood of Big Bend National Park, Texas.

10:45 RECESS

11:00 INFORMAL PRESENTATIONS

1:30 PM - 3:00 PM

BUSINESS MEETING

Presiding: GARLAND R. UPCHURCH, JR, Southwest Texas State University, San Marcos.

1:30 BUSINESS MEETING: Paleobotanical Section.


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