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Activity

2024

• ASSESSING EARLY LAND PLANT IMPACTS ON THE EVOLVING PALEOZOIC MARINE BIOSPHERE
  T112 Oceans and Climates through Earth History: Modeling, Proxy, and Proxy Development Studies (Posters)
  Monday, 23 September 2024

  8:00 AM - 5:30 PM

  Hall D
• NEW INSIGHTS INTO EARLY VASCULAR LAND PLANTS AS GEOBIOLOGICAL AGENTS OF PHOSPHORUS WEATHERING
  T2 New Voices in Geobiology
  Sunday, 22 September 2024

  8:00 AM - 12:00 PM

  208A

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2023

• SELECTIVITY IN SPECIES TURNOVER DURING THE LATE ORDOVICIAN MASS EXTINCTION: TESTING THE INFLUENCE OF BIOTOPE AND GEOGRAPHIC RANGE ON GRAPTOLITE EXTINCTION AND ORIGINATION RISKS
  T216 Mass Extinctions as Natural Experiments in Earth System Perturbations I
  Wednesday, 18 October 2023

  8:00 AM - 12:00 PM

  301 / 302

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2022

• NEW CONSTRAINTS ON THE AGE OF THE ELLIS BAY FORMATION, ANTICOSTI ISLAND, CANADA: A REVISED FRAMEWORK FOR UNDERSTANDING THE LATE ORDOVICIAN MASS EXTINCTION
  T260 Cambrian–Ordovician Faunas and Events: A Session in Honor of John F. Taylor and John E. Repetski
  Wednesday, 12 October 2022

  1:30 PM - 5:30 PM

  Mile High Ballroom 4A
• A CHANGE IN SEDIMENTATION PATTERNS IN A PALEOZOIC REEF REVEALED VIA THREE-DIMENSIONAL RECONSTRUCTION
  T191 Stratigraphic Paleobiology: Working with the Nature of the Stratigraphic Record to Address Paleobiological Questions
  Tuesday, 11 October 2022

  1:30 PM - 5:30 PM

  Mile High Ballroom 4B
• PATTERNS AND CHANGES OF GRAPTOLITE BIOTOPE AFFINITY DURING THE LATE ORDOVICIAN MASS EXTINCTION
  T85 Modeling Ecological Niches and Species Distributions in the Fossil Record: Approaches and Applications
  Monday, 10 October 2022

  8:00 AM - 12:00 PM

  Mile High Ballroom 4A

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2021

• MULTIPLE HOST PHASES OF MERCURY IN THE EARLY PALEOZOIC ROAD RIVER GROUP OF NORTHERN YUKON, CANADA
  T161 Sedimentary Geology Division/SEPM Student Research Poster Competition: Dynamics of Stratigraphy and Sedimentation (Posters)
  Tuesday, 12 October 2021

  9:00 AM - 1:00 PM

  Exhibit Hall A

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2020

• THE ORDOVICIAN TIMESCALE, 2020
  T244 The Ordovician Earth: New Insights to Environmental and Biotic Responses in the Fossil and Rock Record II
  Friday, 30 October 2020

  10:00 AM - 2:00 PM

  Meeting Rooms
• THE LATE ORDOVICIAN MASS EXTINCTION OF GRAPTOLITES: ONE HUMP OR TWO?
  T179 The Ordovician Earth: New Insights to Environmental and Biotic Responses in the Fossil and Rock Record I
  Thursday, 29 October 2020

  10:00 AM - 12:00 PM

  Meeting Rooms
• AN EXCEPTIONAL RECORD OF EARLY TO MID-PALEOZOIC REDOX CHANGE FROM THE ROAD RIVER GROUP, YUKON, CANADA
  T76 Co-Evolution of Earth’s Surface Environment and Eukaryotic Life from the Mid-Proterozoic to Early Paleozoic
  Tuesday, 27 October 2020

  1:30 PM - 5:30 PM

  Meeting Rooms

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2019

• NEW RE-OS AGE AND OS GEOCHEMISTRY FROM THE ROAD RIVER GROUP: TEMPORAL CONSTRAINTS FOR THE REDOX STATE OF PALAEOZOIC OCEANS
  T282 Chemostratigraphy: Physical and Temporal Applications (Posters)
  Wednesday, 25 September 2019

  9:00 AM - 6:30 PM

  Hall AB, North Building

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2018

• REGIONAL AND GLOBAL CHRONO- AND BIO-CHEMOSTRATIGRAPHIC CONTRIBUTIONS OF THE SCHLAMER #1 CORE (SILURIAN, ILLINOIS BASIN)
  T187 Integrated Biostratigraphy (Posters)
  Tuesday, 6 November 2018

  9:00 AM - 6:30 PM

  Halls J-K
• THE BLACK SHALE RECORD OF THE ORDOVICIAN RADIATION: NEW INSIGHTS INTO REDOX CHANGE FROM THE ROAD RIVER GROUP OF YUKON, CANADA
  T170 New Voices in Geobiology (Posters)
  Tuesday, 6 November 2018

  9:00 AM - 6:30 PM

  Halls J-K
• ON THE ORIGIN OF MORPHOSPECIES – USING BAYESIAN PHYLOGENETICS TO QUANTIFY THE MODE OF ANCESTOR DESCENDANT RELATIONSHIPS IN PALEOZOIC INVERTEBRATES
  T13 Phylogenetic Paleobiology: Exploring Macroevolutionary Trends with Evolutionary Trees I
  Sunday, 4 November 2018

  8:00 AM - 12:00 PM

  Room 142
• STRATIGRAPHIC REVISION AND HIGH-RESOLUTION CHRONOSTRATIGRAPHIC CORRELATION OF THE SILURIAN BAINBRIDGE GROUP, ILLINOIS BASIN
  31 D6. Sedimentary Geology (Posters)
  Tuesday, 17 April 2018

  8:00 AM - 5:30 PM

  First Floor Lobby
• CONODONT BIOSTRATIGRAPHY OF THE SCHLAMER #1 CORE AND REVISIONS TO THE SILURIAN CONODONT ZONATION FOR THE GEOLOGIC TIME SCALE 2020
  6 Current Developments in Paleozoic and Early Mesozoic Conodont Biostratigraphy, Systematics, and Paleoecology: The 51st Pander Society Symposium
  Monday, 16 April 2018

  8:00 AM - 12:00 PM

  Room 299

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2017

• EVIDENCE FOR A GRAPTOLITE EXTINCTION EVENT LINKED TO SEA-LEVEL FALL AT THE ORDOVICIAN-SILURIAN BOUNDARY
  272 D17. Paleontology, Paleoecology/Taphonomy (Posters)
  Tuesday, 24 October 2017

  9:00 AM - 6:30 PM

  Halls 4EF

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2014

• ROAD-TESTING TWO LATE ORDOVICIAN-EARLY SILURIAN GSSPS USING HORIZON ANNEALING FOR QUANTITATIVE STRATIGRAPHIC CORRELATION
  176 Stratigraphy
  Tuesday, 21 October 2014

  8:00 AM - 12:00 PM

  221/222
• DISTINGUISHING SAMPLING AND ECOLOGIC EFFECTS ON GEOGRAPHIC RANGE AND DURATION IN GRAPTOLITES
  T257 The Ordovician Revolution: Co-Evolution of Climate and the Biosphere
  Tuesday, 21 October 2014

  1:00 PM - 5:00 PM

  215/216
• GRAPTOLITE COMMUNITY RESPONSES TO LATE ORDOVICIAN CLIMATE CHANGE, THRESHOLD EFFECTS AND THE HIRNANTIAN MASS EXTINCTION
  T160 Critical Earth-Life Transitions: The Marine Perspective
  Monday, 20 October 2014

  1:00 PM - 5:00 PM

  114/115

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2013

• CHANGING PLANKTON COMMUNITY STRUCTURE IN THE LATE KATIAN-EARLY HIRNANTIAN: EVIDENCE FROM GRAPTOLITES AND NITROGEN ISOTOPES
  T90 Biological and Environmental Feedbacks in the Colonization of the Water Column
  Sunday, 27 October 2013

  1:00 PM - 5:00 PM

  Room 603
• ANALYSIS OF EARLY PALEOZOIC ZOOPLANKTON (GRAPTOLOIDA) EXTINCTION RISK USING MODEL-CHOICE
  T90 Biological and Environmental Feedbacks in the Colonization of the Water Column
  Sunday, 27 October 2013

  1:00 PM - 5:00 PM

  Room 603

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2012

• THE 2012 GEOLOGIC TIME SCALE FOR THE ORDOVICIAN AND SILURIAN SYSTEMS: ADVANCES AND CHALLENGES
  T250 Geologic Timescale—Current Status, Future Enhancement, and Applications (Posters)
  Wednesday, 7 November 2012

  9:00 AM - 6:00 PM

  Hall B
• CHANGING OCEANIC CONDITIONS THROUGH THE LATE ORDOVICIAN GLACIATION INTO THE EARLIEST SILURIAN GLOBAL ANOXIC EVENT: EVIDENCE FROM BLACK SHALES AND NITROGEN ISOTOPES
  6 SPECIAL SESSION: GSA BULLETIN: 125th Celebration Presentations I
  Sunday, 4 November 2012

  8:00 AM - 12:00 PM

  Ballroom B
• AN ALTERNATIVE INTERNATIONAL CORRELATION OF THE LATE ORDOVICIAN CARBON ISOTOPE CHEMOSTRATIGRAPHIC RECORD: IMPLICATIONS FOR LATEST ORDOVICIAN TEMPERATURE HISTORY
  T37 Oceans and Climates through Earth History: From Proxy Reconstructions to Model Assessments (Posters)
  Sunday, 4 November 2012

  9:00 AM - 6:30 PM

  Hall B
• BIOGEOGRAPHY AND MASS EXTINCTION: EXTIRPATION AND RE-INVASION OF NORMALOGRAPTUS SPECIES (GRAPTOLITHINA) IN THE LATE ORDOVICIAN PALAEOTROPICS
  10 Dimensions of Biodiversity: A Paleontological Perspective
  Monday, 23 April 2012

  1:00 PM - 3:20 PM

  Room 303

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2011

• EVENNESS AND SPECIES ABUNDANCE IN GRAPTOLITE COMMUNITIES: A NEW PROXY FOR CLIMATE CHANGE DURING THE END ORDOVICIAN MASS EXTINCTION
  27 Paleontology (Posters) I: Ecology and Phylogeny
  Sunday, 9 October 2011

  9:00 AM - 6:00 PM

  Hall C

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2010

• NEW OBSERVATIONS ON THE BASAL STRUCTURE OF THE GRAPTOLITE GENUS APPENDISPINOGRAPTUS, AND IMPLICATIONS FOR BIODIVERSITY AND BIOGEOGRAPHY
  32 Paleontology (Posters) I - Morphology and Biotic Interactions
  Sunday, 31 October 2010

  8:00 AM - 6:00 PM

  Hall D

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2008

• Ecological Reorganization of Graptolite Communities during the Hirnantian Mass Extinction
  T285 Recoveries from Mass Extinction: Patterns, Processes, and Comparisons I
  Wednesday, 8 October 2008

  8:00 AM - 12:00 PM
• Morphological Patterns in Late Ordovician and Early Silurian Graptolites
  260 Paleontology II - Organismal and Morphological Paleontology
  Tuesday, 7 October 2008

  1:30 PM - 5:30 PM
• EFFECTS OF VARYING METHODS OF COMPOSITE TIMESCALE FORMATION ON BIODIVERSITY ESTIMATES
  38 Paleontology (Posters)
  Saturday, 29 March 2008

  8:00 AM - 12:00 PM

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2007

• SPECIES ABUNDANCE CHANGES DURING MASS EXTINCTION AND THE INVERSE SIGNOR-LIPPS EFFECT: APPARENTLY ABRUPT GRAPTOLITE MASS EXTINCTION AS AN ARTIFACT OF SAMPLING
  4 Geologic Records of Biotic Change
  Monday, 12 March 2007

  8:15 AM - 10:00 AM

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2006

• SPECIES TURNOVER DYNAMICS DURING THE HIRNANTIAN (LATE ORDOVICIAN) MASS EXTINCTION: NEW GRAPTOLITE AND CARBON ISOTOPIC DATA FROM VININI CREEK, NEVADA (USA)
  T137 Mass Extinctions: New Approaches Analyzing Process Links Between Land and Sea
  Tuesday, 24 October 2006

  8:00 AM - 12:00 PM
• POTENTIAL RESOLVING POWER OF CALIBRATED BIOSTRATIGRAPHIC TIME LINES FOR PALEOZOIC DEEP TIME
  T18 The EARTHTIME Project I
  Sunday, 22 October 2006

  8:00 AM - 12:00 PM

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2005

• GLACIOEUSTATIC CONTROL OF δ13C EXCURSIONS IN LATE ORDOVICIAN AND EARLY SILURIAN EPEIRIC SEAS: INFLUENCE OF CARBONATE PLATFORM WEATHERING
  2 Influence of Epeiric Sea Dynamics on the Interpretation of Isotope Secular Curves I
  Monday, 8 August 2005

  9:00 AM - 12:00 PM

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2002

• CONTRASTING PATTERNS OF ORIGINATION AND EXTINCTION AMONG GRAPTOLITE SPECIES DURING THE END-ORDOVICIAN MASS EXTINCTION
  161 Paleontology/Paleobotany V: Diversity Dynamics and Extinctions
  Tuesday, 29 October 2002

  1:30 PM - 5:30 PM

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Date Unknown

• AN INITIAL APPROACH TO THE ESTIMATION OF UNCERTAINTY IN BIODIVERSITY ESTIMATES OBTAINED FROM COMPOSITE SECTIONS, WITH AN EXAMPLE FROM THE HIRNANTIAN MASS EXTINCTION
  230 Paleontology/Paleobotany (Posters) II: Fossils in Time, Space, and Morphospace
• APPROACHES TO CHARACTERIZING AND COMPARING STRATIGRAPHIC CORRELATIONS, AS APPLIED TO ESTIMATION OF BIODIVERSITY
  208 Paleontology (Posters) III: Diversity, Evolution, and Turnover