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Activity

2025

• NEW EARLY SILURIAN (LLANDOVERY) TRILOBITES FROM THE SEXTON CREEK FORMATION, SOUTHEAST MISSOURI
  38 D5. Contributions from Paleontology, Paleoclimatology, and Geoarchaeology (Posters)
  Sunday, 30 March 2025

  8:30 AM - 2:30 PM

  North Great Hall

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2023

• ENCRINURID TRILOBITES FROM THE UPPER ORDOVICIAN (KATIAN) OF NORTHEASTERN IOWA
  T172 Advances in Arthropod Paleobiology: Honoring the Illustrious Career of Rodney Feldmann (Posters)
  Tuesday, 17 October 2023

  8:00 AM - 5:30 PM

  Hall B
• REEVALUATION OF AGNOSTOID ARTHROPOD MORPHOLOGY AND REASSESSMENT OF TRILOBITE AFFINITY USING SILICIFIED SPECIMENS FROM THE GREAT BASIN
  T172 Advances in Arthropod Paleobiology: Honoring the Illustrious Career of Rodney Feldmann (Posters)
  Tuesday, 17 October 2023

  8:00 AM - 5:30 PM

  Hall B
• ARTICULATED CAMBRIAN (GUZHANGIAN) TRILOBITES FROM THE WEEKS FORMATION, UTAH: REVISION AND REASSESSMENT OF THE SPECIES PROPOSED BY CHARLES WALCOTT
  T172 Advances in Arthropod Paleobiology: Honoring the Illustrious Career of Rodney Feldmann (Posters)
  Tuesday, 17 October 2023

  8:00 AM - 5:30 PM

  Hall B
• THE ORIGIN OF HORSESHOE CRABS: DISCOVERY OF THREE-DIMENSIONALLY PRESERVED XIPHOSURAN SPECIES IN THE LOWER TREMADOCIAN (LOWER ORDOVICIAN) OF THE GREAT BASIN, WESTERN USA
  2 D8. Paleontology: Diversity, Extinction, and Origination I
  Sunday, 15 October 2023

  8:00 AM - 12:00 PM

  306 / 307
• BETWEEN-HABITAT DISSIMILARITY (BETA-DIVERSITY) RESPONSE OF TRILOBITES TO THE END-ORDOVICIAN MASS EXTINCTION: A MECHANISM TO MAINTAIN WITHIN-HABITAT RICHNESS (ALPHA-DIVERSITY)
  22 D8. Paleontology: Diversity, Extinction, and Origination (Posters)
  Sunday, 15 October 2023

  8:00 AM - 5:30 PM

  Hall B
• PALEOECOLOGY OF THE END-SKULLROCKIAN (TREMADOCIAN; EARLY ORDOVICIAN) TRILOBITE MASS EXTINCTION
  2 D8. Paleontology: Diversity, Extinction, and Origination I
  Sunday, 15 October 2023

  8:00 AM - 12:00 PM

  306 / 307

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2021

• SYSTEMATIC REVISION OF MARJUMAN STAGE (MIAOLINGIAN SERIES: GLOBAL GUZHANGIAN STAGE) TRILOBITES FROM THE LINCOLN PEAK FORMATION, EASTERN NEVADA, WITH NEW SILICIFIED COLLECTIONS
  25 D18. Recent Advances in Paleontology II (Posters)
  Sunday, 10 October 2021

  9:00 AM - 1:00 PM

  Exhibit Hall A
• REVISION OF THE TRILOBITES OF THE SILURIAN HENRYHOUSE FORMATION OF OKLAHOMA
  2 D3. Paleontology
  Sunday, 18 April 2021

  1:00 PM - 5:00 PM

  Missouri Geological Survey Room

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2018

• EVIDENCE OF GLOBAL SIGNAL FOR LATE CAMBRIAN AND EARLY ORDOVICIAN CYCLICAL MASS EXTINCTIONS
  73 D18. Paleontology, Extinctions and Paleoecology
  Monday, 5 November 2018

  8:00 AM - 12:00 PM

  Room 141
• PHYLOGENY AND MORPHOLOGY OF THE CAMBRIAN-ORDOVICIAN TRILOBITE GENUS CLELANDIA WITH NEW AND REVISED SPECIES
  T115 Phylogenetic Paleobiology: Exploring Macroevolutionary Trends with Evolutionary Trees (Posters)
  Monday, 5 November 2018

  9:00 AM - 6:30 PM

  Halls J-K

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2017

• GENERA ARE EFFECTIVE SURROGATES FOR SPECIES RICHNESS IN DEEP TIME: COMPARISONS AT MULTIPLE SCALES
  220 D8. Paleontology, Macroevolution/Biogeography
  Tuesday, 24 October 2017

  1:30 PM - 5:30 PM

  Room 606
• NEW GENERA OF DIMEROPYGID TRILOBITES FROM THE EARLY ORDOVICIAN OF THE WESTERN UNITED STATES AND THE PHYLOGENETIC STRUCTURE OF THE FAMILY
  84 D18. Paleontology, Phylogenetic/Morphological Patterns (Posters)
  Sunday, 22 October 2017

  9:00 AM - 5:30 PM

  Halls 4EF

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2015

• DIGITIZED SYSTEMATICS: NEW PARADIGMS IN IMAGING, DATA SEARCHING, AND PUBLICATION TRANSFORM PALEONTOLOGICAL TAXONOMY
  T270 Using Digitized Data in Geological and Paleontological Research II
  Wednesday, 4 November 2015

  8:00 AM - 12:00 PM

  Room 314
• ENGAGING UNDERGRADUATE STUDENTS IN COLLECTION-BASED RESEARCH AT THE UNIVERSITY OF IOWA PALEONTOLOGY REPOSITORY
  T215 Intentional Integration of Research into the Curriculum: Undergraduate Research as a Teaching Practice (Posters)
  Tuesday, 3 November 2015

  9:00 AM - 6:30 PM

  Exhibit Hall
• SYSTEMATICS, AFFINITY, AND BIOSTRATIGRAPHIC UTILITY OF THE EARLY ORDOVICIAN TRILOBITE AMBLYCRANIUM ROSS, FROM THE GREAT BASIN, WESTERN USA
  221 Paleontology: The Early and Middle Paleozoic: Biodiversity, Biogeography, and Biostratigraphy (Posters)
  Tuesday, 3 November 2015

  9:00 AM - 6:30 PM

  Exhibit Hall
• SULFUR ISOTOPIC (δ34S) EVIDENCE FOR MARINE ANOXIA AND LINKS TO LOWER ORDOVICIAN (TREMADOCIAN) TRILOBITE EXTINCTIONS
  T18 Co-Evolution of Life and Planet: Broad–Scale Controls on Biodiversity I
  Sunday, 1 November 2015

  8:00 AM - 12:00 PM

  Room 314

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2014

• AN EARLY ORDOVICIAN MASS EXTINCTION AND THE PERSISTENCE OF ANOXIA
  T257 The Ordovician Revolution: Co-Evolution of Climate and the Biosphere
  Tuesday, 21 October 2014

  1:00 PM - 5:00 PM

  215/216

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2013

• A SPECIES ACCUMULATION CURVE FOR TRILOBITA
  156 Extinctions and Diversity Dynamics
  Monday, 28 October 2013

  1:00 PM - 5:00 PM

  Mile High Ballroom 1CD

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2012

• TOWARDS A PHYLOGENETIC CLASSIFICATION OF TRILOBITA: SYNAPOMORPHIES AND STRUCTURE OF THE ORDER OLENIDA ADRAIN, 2011
  T151 The Origins of Arthropod Diversity: Phylogenetic Insights from the Living and the Dead I
  Tuesday, 6 November 2012

  8:00 AM - 12:00 PM

  217BC
• IMAGING, MORPHOLOGICAL KNOWLEDGE OF SPECIES, AND PHYLOGENY RECONSTRUCTION: A CASE STUDY IN PLIOMERID TRILOBITES
  T200 The Origins of Arthropod Diversity: Phylogenetic Insights from the Living and the Dead II
  Tuesday, 6 November 2012

  1:30 PM - 5:30 PM

  217BC

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2010

• A REVISED BIOSTRATIGRAPHY OF THE UPPER BLACKHILLSIAN STAGE (LOWER ORDOVICIAN, WESTERN LAURENTIA): NEW FAUNAS, NEW ZONES, AND HIGHLY RESOLVED REGIONAL CORRELATION
  275 Paleontology IX - Biostratigraphy and Ichnology
  Wednesday, 3 November 2010

  1:30 PM - 5:30 PM

  Room 601
• LOWER ORDOVICIAN INTERCONTINENTAL CORRELATION USING PELAGIC TRILOBITES
  275 Paleontology IX - Biostratigraphy and Ichnology
  Wednesday, 3 November 2010

  1:30 PM - 5:30 PM

  Room 601
• NEW UPPER MARJUMAN AND LOWERMOST STEPTOEAN (UPPER CAMBRIAN) BIOSTRATIGRAPHIC SCHEME FOR THE EASTERN GREAT BASIN, NEVADA AND UTAH
  275 Paleontology IX - Biostratigraphy and Ichnology
  Wednesday, 3 November 2010

  1:30 PM - 5:30 PM

  Room 601
• A REINTERPRETATION OF THE ORDOVICIAN RADIATION
  200 Paleontology VII - Consequences of Extinction and Radiation
  Tuesday, 2 November 2010

  1:30 PM - 5:30 PM

  Room 605
• A REVISED TRILOBITE ZONATION FOR THE LOWER ORDOVICIAN OF WESTERN LAURENTIA
  3 Mid-Continent Paleontology
  Sunday, 11 April 2010

  1:30 PM - 4:45 PM

  Cooper Creek 2
• PHYLOGENY AND SYSTEMATICS OF THE TELEPHINID TRILOBITE OPIPEUTERELLA, WITH NEW SPECIES FROM THE WESTERN USA AND NEWFOUNDLAND, CANADA
  3 Mid-Continent Paleontology
  Sunday, 11 April 2010

  1:30 PM - 4:45 PM

  Cooper Creek 2
• PHYLOGENY OF THE EARLY ORDOVICIAN TRILOBITES IBEXASPIS, PSEUDOMERA, AND RELATED TAXA: RECONSTRUCTING PLIOMERIDAE FROM THE GROUND UP
  3 Mid-Continent Paleontology
  Sunday, 11 April 2010

  1:30 PM - 4:45 PM

  Cooper Creek 2

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2009

• PHYLOGENETICS OF THE EARLY ORDOVICIAN PLIOMERID TRILOBITES PROTOPLIOMERELLA, PSEUDOCYBELE, AND RELATED TAXA: UNRAVELLING THE BASE OF THE CHEIRUROIDEAN RADIATION
  220 Paleontology: Phylogeny & Systematics
  Wednesday, 21 October 2009

  8:00 AM - 12:00 PM

  Portland Ballroom 255
• TERMINAL SKULLROCKIAN AND TERMINAL STAIRSIAN (LOWER ORDOVICIAN) LAURENTIAN MASS EXTINCTIONS: THE LAST "BIOMERES"
  T159 Volcanism, Impacts, Mass Extinctions, and Global Environmental Change III
  Tuesday, 20 October 2009

  8:00 AM - 12:00 PM

  Portland Ballroom 253

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2007

• A REVISED HISTORY OF TRILOBITA
  184 Paleontology VII: Phylogeny and Morphology
  Wednesday, 31 October 2007

  8:00 AM - 12:00 PM
• PHYLOGENETICS OF THE ORDOVICIAN ACIDIPHORUS-GROUP BATHYURID TRILOBITES
  184 Paleontology VII: Phylogeny and Morphology
  Wednesday, 31 October 2007

  8:00 AM - 12:00 PM
• TRILOBITE SCLERITE RATIOS AS TAPHONOMIC PROXIES: COMPARING HABITATS IN THE ORDOVICIAN OF LAURENTIA
  30 Paleontology II: Taphonomy and Paleoecology
  Sunday, 28 October 2007

  1:30 PM - 5:30 PM

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2006

• HIGHER TAXA AS PROXIES FOR SPECIES DIVERSITY: A GLOBAL SPECIES DATABASE OF TRILOBITA
  T79 Trilobite Paleobiology and Evolution: In Honor of Brian Chatterton
  Monday, 23 October 2006

  8:00 AM - 12:00 PM
• SEQUENCE STRATIGRAPHY AND CAMBRIAN TRILOBITE EXTINCTIONS
  T79 Trilobite Paleobiology and Evolution: In Honor of Brian Chatterton
  Monday, 23 October 2006

  8:00 AM - 12:00 PM
• CRYPTIC MICROBIAL BUILDUPS AND HARDGROUNDS IN A LOWER ORDOVICIAN SHALLOW SUBTIDAL CARBONATE SUCCESSION, SOUTHERN HOUSE RANGE, UTAH
  8 Sedimentology/Stratigraphy/Paleontology/Paleomagnetics
  Tuesday, 7 March 2006

  8:00 AM - 12:00 PM
• CAMBRIAN (STEPTOEAN-BASAL SUNWAPTAN) TRILOBITE BIOSTRATIGRAPHY OF THE HONEY CREEK FORMATION, WICHITA MOUNTAINS, OKLAHOMA
  7 Stratigraphy/Paleontology/Petrology/Volcanology (Posters)
  Monday, 6 March 2006

  1:30 PM - 5:10 PM

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2005

• EVENNESS AND DIVERSITY OF LOWER PALEOZOIC TRILOBITE FAUNAS OF LAURENTIAN NORTH AMERICA
  206 Paleontology VI: Partitioning Taxa—Patches, Gradients, and Regions
  Wednesday, 19 October 2005

  8:00 AM - 12:00 PM
• FAUNAL DYNAMICS AND SYSTEMATICS OF DEPAUPERATE POST-EXTINCTION TRILOBITE FAUNAS, TERMINAL SKULLROCKIAN STAGE (LOWER ORDOVICIAN), GREAT BASIN
  17 Innovations in Paleontological Methods II: Novel Insights Into Terrestrial and Marine Depositional Systems Through Taphonomy and Ichnology
  Thursday, 19 May 2005

  1:20 PM - 5:00 PM

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2004

• RAPID TURNOVER OF TRILOBITE FAUNAS RELATED TO STRATIGRAPHIC CONDENSATION IN A LOWER ORDOVICIAN "BIOMERE"
  227 Paleontology XII: The Ecologic Context of Taxonomic Turnover
  Wednesday, 10 November 2004

  1:30 PM - 5:30 PM
• TAPHONOMIC CONTROL OF SHALLOW SUBTIDAL FOSSIL ABUNDANCE
  196 Paleontology IX: Perspectives on Diversity
  Wednesday, 10 November 2004

  8:00 AM - 12:00 PM
• REDUCED BIOFACIES DIFFERENTIATION IN SILURIAN TRILOBITE FAUNAS OF LAURENTIA
  69 Paleontology IV: Mass Extinctions and Their Consequences
  Monday, 8 November 2004

  8:00 AM - 12:00 PM

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2003

• EARLY SILURIAN TRILOBITES FROM NORTHEASTERN MISSOURI
  9 Paleontology and Paleobotany (Posters)
  Monday, 24 March 2003

  1:00 PM - 4:30 PM

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2001

• EARLY ORDOVICIAN TRILOBITE DIVERSITY, TURNOVER RATES, AND MASS EXTINCTION: HIGH-RESOLUTION BIOSTRATIGRAPHY OF THE HOUSE FORMATION AND CORRELATIVES, GREAT BASIN
  156 Marine Invertebrate Paleontology III
  Thursday, 8 November 2001

  8:00 AM - 12:00 PM
• STRATIGRAPHIC CONTEXT OF LATE CAMBRIAN TRILOBITE EXTINCTIONS: EVIDENCE FROM EASTERN NEVADA
  T12 Stratigraphic Paleobiology
  Monday, 5 November 2001

  8:00 AM - 12:00 PM
• TRILOBITE PALEOECOLOGY AND TAPHONOMY OF THE STEPTOEAN (UPPER CAMBRIAN) DUNDERBERG FORMATION, CHERRY CREEK RANGE, NEVADA
  15 Paleontology
  Tuesday, 24 April 2001

  8:20 AM - 11:00 AM

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Date Unknown

• UPPER MARJUMAN (UPPER CAMBRIAN) SHALLOW WATER TRILOBITE FAUNAS, GREAT BASIN, WESTERN USA
  153 Paleontology (Posters) III: Diversity, Extinction, Origination
• LOWER ORDOVICIAN TRILOBITES OF THE COW HEAD GROUP, WESTERN NEWFOUNDLAND, CANADA
  153 Paleontology (Posters) III: Diversity, Extinction, Origination
• BIOSTRATIGRAPHY AND PALEOECOLOGY OF LATE CAMBRIAN (MARJUMAN) TRILOBITES FROM THE EMIGRANT SPRINGS FORMATION, SOUTHERN SCHELL CREEK RANGE, NEVADA
  16 Paleontology (Posters)
• UNLOCKING RESEARCH COLLECTIONS: THE UI PALEONTOLOGY REPOSITORY COMPUTERIZATION PROJECT
  52 Geoscience Information/Communication (Posters)
• UI PALEONTOLOGY REPOSITORY REORGANIZATION PROJECT: IMPROVING STANDARDS IN COLLECTION CARE AND ACCESS
  125 Geoscience Information: Resources and Dissemination (Posters)