CONFERENCE PROGRAM Oral Presentation Schedule Monday, June 8 8:50 AM - Opening Remarks- Stephen A. Leslie ISOTOPE STRATIGRAPHY/CLIMATE Session Chairs: Stephen A. Leslie and Daniel Goldman 9:00 AM Deciphering the movement of the Argentine Precordillera from tropical to higher latitudes, Late Cambrian–Late Ordovician, through conodont δ18O paleothermometry Guillermo L. Albanesi, Christopher R. Barnes, Julie A. Trotter, Ian S. Williams, and Stig M. Bergström 9:15 AM An integrated scheme for δ13C chemostratigraphy and conodont biostratigraphy in the Ordovician of Sweden and useful tie-points for global correlation Mikael Calner, Oliver Lehnert, Rongchang Wu and Michael M. Joachimski 9:30 AM Lower-Middle Ordovician carbon and sulfur isotope stratigraphy at Shingle Pass, Nevada, USA: changes in the carbon and sulfur cycles and a link between oxygen levels and biodiversity Cole Edwards and Matthew R. Saltzman and David A. Fike 9:45 AM Upper Ordovician carbon isotope chemostratigraphy on the Yangtze Platform, South China: Implications for the correlation of the Guttenberg δ13C excursion (GICE) Ru Fan, Stig M. Bergström, Yuanzheng Lu, Xuelei Zhang, Shiben Zhang, Xin Li, and Shenghui Deng 10:00 AM Paired δ13Ccarb-δ13Corg records from the Laurentian margins during late Katian glaciation David Jones, Seth Finnegan, Mark Hellmer 10:15-10:45 AM Break 10:45 AM Neodymium isotopes and the Late Ordovician evolution of the North American Midcontinental Seaway Ken MacLeod and Kelsey Putman Hughes 11:00 AM Evidence of warming during the early Katian- Conodont apatite δ18O and bulk carbonate δ 13 C records from the Upper Mississippi Valley, US Page Quinton, Achim D. Herrmann, Stephen A. Leslie, Kenneth G. MacLeod 11:15 AM Ordovician temperature trends: constraints from δ18O analysis of conodonts from New South Wales, Australia (Short paper) Page Quinton, Ian G. Percival, Yong-Yi Zhen, and Kenneth G. MacLeod, 11:30 AM Coupled carbon and strontium isotope stratigraphy of a Middle Ordovician Bahamian-type carbonate platform at Clear Spring, Maryland Matthew Saltzman, Cole Edwards, and Stephen A. Leslie 11:45 AM Middle–Late Ordovician (Darriwilian–Sandbian) paired δ34S and δ13C records reveal dynamic cycling through the Great Ordovician Biodiversification Event Seth A. Young, Benjamin C. Gill, Cole T. Edwards, Matthew R. Saltzman, and Stephen A. Leslie 12:00 PM - 1:30 PM Lunch BIOSTRATIGRAPHY Session Chairs: Achim Herrmann and John Haynes 1:30 PM Proposed Auxiliary Stratigraphic Section and Point (ASSP) for the base of the Ordovician System at Lawson Cove, Utah, USA James Miller, Ethington, Raymond L., Repetski, John E., Ripperdan, R.L., and Taylor, John F. 1:45 PM A biostratigraphic reappraisal of Tremadocian graptolites from SW Europe and NW Africa Juan Carlos Gutiérrez-Marco, Gian Luigi Pillola, Artur A. Sá and Emmanuel L.O. Martin 2:00 PM The Cambrian-Ordovician boundary in the Cordillera Oriental, NW Argentina (Short Paper) Guillermo L. Albanesi, M. Eugenia Giuliano, Fernanda E. Pacheco, Gladys Ortega and C. Rubén Monaldi 2:15 PM Iberian Ordovician and its international correlation Juan Carlos Gutiérrez-Marco, Artur A. Sá , Isabel Rábano, Graciela N. Sarmiento, Diego C. García-Bellido, Enrique Bernárdez, Saturnino Lorenzo, Enrique Villas, Andrea JiménezSánchez, Jorge Colmenar and Samuel Zamora 2:30 PM The Pygodus serra Zone in Cuyania, Argentina (Short Paper) Susana Heredia, Ana Mestre, Tatiana Soria, and Cintia Kaufmann 2:45-3:15 PM Break 3:15 PM Biostratigraphy and paleoecology of Late Ordovician (Ka2) conodonts and microbrachiopods from north Queensland, Australia (Short Paper) Yong Yi Zhen and Ian Percival 3:30 PM Latest Ordovician-earliest Silurian chitinozoans from Puna, western Gondwana G. Susana de la Puente, Claudia V. Rubinstein, N. Emilio Vaccari, and Florentin Paris 4:00 PM A revised biostratigraphic framework for the near-field Hirnantian deposits of the Central Anti-Atlas (southern Morocco) and their correlation to the Wangjiawan GSSP (Yichang, China) Lorena Tessitore, This R. A. Vandenbroucke, Jean-François Ghienne, Marie-Pierre Dabard, Alfredo Loi, Florentin Paris, and Philippe Razin 4:15 - 5:30 PM POSTER SESSION Authors present at posters Tuesday, June 9 INTEGRATED APPROACHES IN STRATIGRAPHY Session Chairs: Matt Saltzman and John Taylor 9:00 AM Correlation of Upper Ordovician K-bentonites in the East Baltic – A combined approach of chitinozoan biostratigraphy and sanidine geochemistry Heikki Bauert, Garmen Bauert, Jaak Nõlvak, and Tarmo Kiipli 9:15 AM Chronostratigraphic correlation of the North American Upper Ordovician Standard: the 2015 Edition Charles Mitchell, Bryan K. Sell, Stephen A. Leslie, and Daniel Goldman 9:30 AM The more the merrier? Reconciling sequence stratigraphy, chemostratigraphy and multiple biostratigraphic indices in the correlation of the Katian Reference Section, central Oklahoma. Stephen Westrop, Lisa Amati, Carlton E. Brett, Robert E. Swisher, Jesse R. Carlucci, Daniel Goldman, Stephen A. Leslie, and Roger Burkhalter 9:45 AM A CONOP9 quantitative stratigraphic model of Baltic Ordovician and Silurian chitinozoan distribution and K-bentonites Liina Antonovitš, Viiu Nestor, Jaak Nõlvak, Garmen Bauert, Olle Hints, and Tarmo Kiipli 10:00 AM High-Resolution Stratigraphic Correlation and Biodiversity Dynamics of Middle and Late Ordovician Marine Fossils from Baltoscandia and Poland Daniel Goldman, David H. Sheets, Stig M. Bergström, Jaak Nõlvak, and Teresa Podhalanska 10:15-10:45 AM Break 10:45 AM Ordovician sequence stratigraphy of the Siberian Platform revised Andrei Dronov, Kanygin, A.V., Timokhin, and T.V. Gonta 11:00 AM Trilobite biofacies and sequence stratigraphy: an example from the Upper Ordovician of Oklahoma Jesse Carlucci and Stephen Westrop 11:15 AM Milankovitch cycles in the Juniata Formation, Late Ordovician, Central Appalachian Basin, USA Linda Hinnov and Richard J. Diecchio 11:30 AM Traces of explosive volcanic eruptions in the Upper Ordovician of the Siberian Platform Warren Huff, A.V. Dronov, B. Sell, A.V. Kanygin, & T.V. Gonta 11:45 AM Early-middle Darriwilian graptolite and conodont faunas from the central Precordillera of San Juan Province, Argentina (Short paper) Fernanda Serra, Nicolás A. Feltes, Gladys Ortega and Guillermo L. Albanesi 12:00 PM - 1:30 PM Lunch ORDOVICIAN OF THE WORLD Session Chairs: John Repetski and Charles Mitchell 1:30 PM Characterization of a platform to basin transition in a mixed siliclastic-carbonate basin: Upper Ordovician of central, KY and Cincinnati, Ohio Allison Young, Carlton E. Brett, and Patrick I. McLaughlin 1:45 PM Recurring Taphofacies in the Upper Ordovician (Katian) of the Cincinnati Arch: A Predictive Model Based on Sequence Stratigraphy Christopher Aucoin, Carlton E Brett, James R Thomka, Benjamin F Dattilo, 2:00 PM Taphonomic comparisons of two Laurentian Upper Ordovician epeiric sea “small shelly faunas” Benjamin F. Dattilo, Rebecca L. Freeman, Jessie L. Reeder, Amanda Straw, Christopher Aucoin, Carlton Brett, and Anne Argast 2:15 PM Lithofacies differentiation of the Late Ordovician Lianglitag Formation limestones on the central part of the Central Tarim Uplift, Tarim Block, NW China Yuanyuan Zhang, Yue Li, Axel Munnecke, and Wang Guan 2:30 PM Geographic distribution and dynamics of the graptolite biodiversity during the endOrdovician mass extinction in South China Qing Chen and Junxuan Fan 2:45 - 3:15 PM Break 3:15 PM In search of the elusive Hirnantian Stage in the High Arctic: a preliminary report from North Greenland Christian Rasmussen, Jan Rasmussen, Svend Stouge, Jisuo Jin, and Axel Munnecke, and David Harper 3:30 PM Clast Research in northern Germany – How erratics contribute to the Ordovician picture Adrian Popp 3:45 PM A new type of cool-water carbonate buildups: Middle Ordovician Moyeronia-Angarella “reefs” of the Siberian platform Andrei Dronov, Axel Munnecke, and Veronica B. Kushlin 4:00 PM Middle Ordovician strata of western Inner Mongolia: depositional and tectonic history Paul Myrow, Jitao Chen, Anne Hakim, Zachary Snyder, Stephen A. Leslie, David A. Fike, and Peng Tang 4:15 PM Ordovician of the Anarak Region: implications in understanding Early Palaeozoic history of Central Iran (Short Paper) Vachik Hairapetian, Mansoureh Ghobadi Pour, Leonid E. Popov, S. Hassan Hejazi, Lars E. Holmer, David Evans and Ali Sharafi 4:30 PM Field and petrographic evidence for late diagenetic silicification of Cambrian and Ordovician carbonates of the Shenandoah Valley, Virginia Daniel Doctor 4:45 PM Early Ordovician lithistid sponge-Calathium reefs on the Yangtze Platform and their paleoceanographic implications Qi-jian Li, Yue Li, Jianpo Wang, and Wolfgang Kiessling Thursday, June 11 PALEOBIOLOGY/PALEOGEOGRAPHY/PALEOECOLOGY Session Chairs: Randall Orndorff and Stig Bergström 9:00 AM Risk and resilience during and after the Late Ordovician extinctions Seth Finnegan, David Harper, and Christian Rasmussen 9:15 AM Immigration, speciation, and biodiversity in Ordovician seas of Laurentia Alycia Stigall, Jennifer E. Bauer, Hannah-Maria R. Brame, Adriane R. Lam, and David F. Wright 9:30 AM Biogeographic origins and dispersal pathways of invasive taxa: the Late Ordovician (Katian) Richmondian Invasion, Cincinnati area, Ohio Adriane Lam and Alycia Stigall 9:45 AM Palaeobiogeographic distribution of Lituitidae cephalopods in late Dapingian to early Katian (Ordovician) and its implications Xiang Fang, Yunbai Zhang, Chen Tingen, Zhang Yuandong, Song Yanyan, and Ma Xuan 10:00 AM Preferential extinction of mesopelagic species and disruption of graptolite community structure during the Late Ordovician mass extinction Charles Mitchell, H. David Sheets, Michael J. Melchin, Jason Loxton, and Petr Štorch 10:15-10:45 AM Break 10:45 AM Brachiopod Community Response to the Ordovician Mass Extinction on Anticosti Island Amelinda Webb and Lindsey Leighton 11:00 AM Foreland basin formation, environmental change and trilobite paleoecology, Late Ordovician of eastern Laurentia Stephen Westrop, Lisa Amati, Jesse R. Carlucci, Carlton E. Brett, Robert E. Swisher 11:15 AM Evolution of the Darriwilian to Katian graptolites from NW China Junxuan Fan, Daniel Goldman, Qing Chen, Xu Chen, and Yuandong Zhang 11:30 AM Early-Middle Ordovician chitinozoan biodiversification of Upper Yangtze Platform, South China Yan Liang, Peng Tang, and Renbin Zhan 11:45 AM The onset of the 'Ordovician Plankton Revolution' in the late Cambrian Thomas Servais, Taniel Danelian, Ronald Martin, Axel Munnecke, Hendrik Nowak, Alexander Nützel, Vincent Perrier, Thijs Vandenbroucke, and Mark Williams 12:00 - 1:30 PM Lunch Systematic Paleontology: Session Chairs: Jesse Carlucci and Stephen Westrop 1:30 PM Late Ordovician, deep-water Foliomena brachiopod fauna from the island of Bornholm, Denmark David Harper and Arne Nielsen 1:45 PM Ordovician (Darriwilian-Sandbian) linguliform brachiopods from the southern Cuyania Terrane of west-central Argentina Lars E. Holmer, Leonid E. Popov, Oliver Lehnert, and Mansoureh Ghobadi Pour 2:00 PM New Cryptostome Prophyllodictya (Bryozoa) from the Nantzinkuan Formation (Early Tremadocian, Lower Ordovician) of Liujiachang Section, Western Hubei, China and Its Phylogenetic Implications Junye Ma, Paul D. Taylor, and Fengsheng Xia 2:15 PM A new tube-like enigmatic animal and its burrows from the Upper Ordovician of the Siberian platform Veronica Kushlina, Andrei V. Dronov, and David A.T. Harper 2:30 PM The Early-Middle Ordovician acritarch assemblage from eastern Yunnan Yan Kui, Li Jun, and Thomas Servais 2:45 - 3:15 PM Break 2:45 PM Graptolite faunas and biostratigraphy from the Hulo Formation (Ordovician) in the Anji area, SE China Xuan Ma, and Yuandong Zhang 3:00 PM The Sandbian (Upper Ordovician) Raphiophorid trilobite Ampyxina powelli: new insights on its description and taphonomy Michael Meyer, Edward Fowler, Aaron Howard, and William Fleming 3:15 PM Life on the edge in eastern Alaska: basal Ordovician (Tremadocian), platform margin faunas of the Jones Ridge Limestone (Short Paper) John F. Taylor, Tyler J. Allen, John E. Repetski, Justin V. Strauss, and Savannah J. Irwin 3:30 PM Agglutinated benthic foraminifera in Upper Ordovician black shales from the northern Holy Cross Mountains (Poland) Wieslaw Trela and Sylwester Salwa 3:45 – 5:30 PM WORKSHOPS People are encouraged to bring specimens for other specialists to examine and discuss. Microscopes will be available to examine fossil specimens. Poster Presentations Lithologies, ages, and provenance of clasts in the Ordovician Fincastle Conglomerate, Botetourt County, Virginia, USA Harvey Belkin, John E. Repetski and Randall C. Orndorff Carbon isotope stratigraphy of the Ordovician-Silurian boundary interval and associated oolites in southern Norway Hanna Calner, Mikael Calner, and Oliver Lehnert Geographic differentiation of the Middle and Upper Ordovician strata in South China Linna Zhang, Junxuan Fan and Yuandong Zhang Was the Great Ordovician Biodiversification Event (GOBE) caused by increased atmospheric oxygen?: Evidence from paired carbon isotopes from bulk carbonate (δ13Ccarb) and organic matter (δ13Corg) from North America Cole Edwards and Matthew R. Saltzman The presence of the Lower-Middle Ordovician genus Baltoniodus in the central Andean Basin, Argentina: the stratigraphic significance (Short paper) Susana Heredia, Josefina Carlorosi, and Graciela Sarmiento The balognathiid apparatuses of Eoplacognathus robustus Bergström and E. lindstroemi Hamar (Short Paper) Susana Heredia and Ana Mestre New data on the Late Ordovician acritarchs and cryptospores from the Moyero and Moyerokan River sections, northeast of the Siberian Platform Elena Raevskaya and Andrei Dronov Biostratigraphy of the Cambrian–Ordovician boundary beds and the position of the lower Ordovician boundary at Kopet-Dagh, Iran (Short Paper) Hadi Jahangir, Mansoureh Ghobadi Pour, Lars E. Holmer, Leonid E. Popov, Ali-Reza Ashuri, Adrian Rushton, Tatiana Yu. Tolmacheva and Arash Amini Early Ordovician (Tremadocian) faunas and biostratigraphy of the Gerd-Kuh section, eastern Alborz, Iran (Short Paper) Mansoureh Ghobadi Pour, Leonid E. Popov, Lars E. Holmer, Mahmud Hosseini-Nezhad, Rahimeh Rasulic, Khadijeh Fallah, Arash Amini and Hadi Jahangir The first sphinctozoan-bearing reef from an Ordovician back-arc basin Qi-jian Li, Yue Li, and Wolfgang Kiessling A taxonomic restudy of Ningxiagraptus Geh, 2002 Xuan Ma, Xu Chen, and Daniel Goldman The Stairsian-Jeffersonian Stage boundary in southern New Mexico and westernmost Texas, USA James Loch, J. F. Taylor, R. L. Ripperdan, P. M. Myrow, and S. J. Irwin, A long-overdue systematic revision of Ordovician graptolite faunas from New South Wales, Australia (Short Paper) Ian Percival, Petr Kraft, Zhang Yuandong, and Lawrence Sherwin Lower Silurian “hot shales” in Poland as a response to Late Ordovician climatic changes Teresa PodhalaĊska and Wieslaw Trela Chitinozoan biodiversity in the Ordovician of Gondwana using the quantitative stratigraphic correlation program CONOP9 Rachael Kathleen Sales, Daniel Goldman, Florentin Paris and H. David Sheets Determining absolute depths of Ordovician (Katian) benthic assemblages in the upper Cincinnatian (Maysvillian to Richmondian) of the Cincinnati Arch region, USA Cameron E. Schwalbach, Carlton E. Brett, Christopher D. Aucoin, and James R. Thomka Ordovician Chronostratigraphy Changes through Time as Recorded in the USGS Geologic Names Lexicon Nancy Stamm and Randall C. Orndorff New conodont records from the Rinconada Formation, eastern margin of the Argentine Precordillera: tectono-stratigraphic implications (Short Paper) Gustavo G. Voldman, Guillermo L. Albanesi, Juan L. Alonso, Luis P. Fernández, Aldo L. Banchig, Raúl Cardó, Gladys Ortega and Alberto M. Vallaure Carbonate microfacies analysis of the Middle-Upper Ordovician succession of the Moyero River section, NE of Siberian Platform Alexey Zaitsev, Inna Ziyatdinova, Evdokiya Kozhevnikova, and Andrei Dronov