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Activity

2024

• IS THE TONIAN RADIATION OF EUKARYOTES AN ARTIFACT OF SAMPLING?
  204 D10. Recent Advances in Biogeography/Biostratigraphy and Diversity, Extinction, and Origination
  Tuesday, 24 September 2024

  1:30 PM - 5:30 PM

  207D

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2023

• EVALUATING THE EFFECTS OF PRESERVATION ON EUKARYOTIC DIVERSITY PATTERNS OF THE LATE TONIAN CHUAR AND UINTA MOUNTAIN GROUPS OF WESTERN LAURENTIA
  T107 Laws of the Grave: Advances in Taphonomy across the Paleontologic Record (Posters)
  Monday, 16 October 2023

  8:00 AM - 5:30 PM

  Hall B

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2022

• PROTEROZOIC—PHANEROZOIC EON TRANSITION δ13CCARB COMPOSITES CONSTRUCTED WITH A REPRODUCIBLE DYNAMIC PROGRAMMING ALGORITHM
  140 The Proterozoic-Phanerozoic Transition: Laying the Foundation for the Modern Earth System
  Tuesday, 11 October 2022

  8:00 AM - 12:00 PM

  Mile High Ballroom 2AB/3AB

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2021

• LESSONS FROM THE CARBON ISOTOPIC COMPOSITION OF SINGLE ORGANIC WALLED MICROFOSSILS
  T239 Life's Innovations from the Early Earth to the Search on Modern Mars III: Honoring the Career of Andrew H. Knoll
  Wednesday, 13 October 2021

  1:30 PM - 5:30 PM

  Portland Ballroom 255 (Hybrid Room)
• PATTERNS IN THE EVOLUTIONARY ACQUISITIONS OF MINERALIZED SKELETONS IN EUKARYOTES
  T178 Life's Innovations from the Early Earth to the Search on Modern Mars I: Honoring the Career of Andrew H. Knoll
  Tuesday, 12 October 2021

  1:30 PM - 5:30 PM

  Portland Ballroom 255 (Hybrid Room)
• DARWIN'S DILEMMA: TAPHONOMIC STUDIES HELP CONSTRAIN THE ORIGIN OF ANIMALS
  T178 Life's Innovations from the Early Earth to the Search on Modern Mars I: Honoring the Career of Andrew H. Knoll
  Tuesday, 12 October 2021

  1:30 PM - 5:30 PM

  Portland Ballroom 255 (Hybrid Room)
• ORGANIC-WALLED MICROFOSSILS OF THE PALEOPROTEROZOIC AND MESOPROTEROZOIC MCARTHUR AND BIRRINDUDU BASINS, NORTHERN TERRITORY, AUSTRALIA
  T76 The Neoproterozoic Earth-Life System
  Monday, 11 October 2021

  8:00 AM - 12:00 PM

  E141/E142 (Hybrid Room)
• INDIVIDUAL ORGANIC-WALLED MICROFOSSIL δ13C DECOUPLED FROM POSITIVE δ13CORG EXCURSIONS IN THE TONIAN CHUAR GROUP
  T15 New Voices in Geobiology
  Sunday, 10 October 2021

  8:00 AM - 12:00 PM

  D137

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2020

• SMALL SHELLY FOSSIL BIOSTRATIGRAPHY OF CAMBRIAN STAGE 4 (DYERAN–DELAMARAN BOUNDARY) OF THE PIOCHE–CALIENTE REGION, NEVADA, USA
  T113 Trends and Patterns in Neoproterozoic–Cambrian Biodiversity and Evolutionary Originations II
  Wednesday, 28 October 2020

  10:00 AM - 12:00 PM

  Meeting Rooms
• ORGANIC PRESERVATION OF VASE-SHAPED MICROFOSSILS FROM THE LATE TONIAN CHUAR GROUP, GRAND CANYON, ARIZONA
  T136 Exceptional Fossilization in Time and Space
  Wednesday, 28 October 2020

  1:30 PM - 5:30 PM

  Meeting Rooms
• CARBON ISOTOPE MEASUREMENTS OF SINGLE ORGANIC-WALLED MICROFOSSILS FROM THE TONIAN CHUAR GROUP, USA REVEAL TAXON-SPECIFIC WATER COLUMN HABITATS
  T110 Evolving Perspectives on the Tonian Biosphere and Environmental Change
  Wednesday, 28 October 2020

  10:00 AM - 12:00 PM

  Meeting Rooms
• THE ROLE OF CLAY MINERALS IN THE PRESERVATION OF PRECAMBRIAN ORGANIC-WALLED MICROFOSSILS
  T136 Exceptional Fossilization in Time and Space
  Wednesday, 28 October 2020

  1:30 PM - 5:30 PM

  Meeting Rooms
• SINGLE FOSSIL ORGANIC CARBON ISOTOPES ILLUMINATE A MESOPROTEROZOIC ECOSYSTEM
  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

• SOME THOUGHTS ON BIOMARKERS, AEROBIC RESPIRATION, AND THE NATURE OF EARLY EUKARYOTES
  236 Understanding the Neoproterozoic Earth-Life System
  Wednesday, 25 September 2019

  8:00 AM - 12:00 PM

  North Ballroom 120D, North Building
• ESTIMATING THE DURATION AND TEMPO OF THE CAMBRIAN EXPLOSION
  T293 Hello (Ancient) World!: Exploring the Neoproterozoic to Cambrian Interval by Quantitatively Probing the Rock Record
  Wednesday, 25 September 2019

  1:30 PM - 5:30 PM

  Room 226ABC, North Building
• TUBES, SCAFFOLDS AND CRUSTS: EDIACARAN METAZOAN BIOMINERALIZERS
  T221 Understanding the Neoproterozoic Earth-Life System
  Tuesday, 24 September 2019

  1:30 PM - 5:30 PM

  Room 102AB, West Building
• BIOMINERALIZATION BY ATTACHMENT OF NANOPARTICLES FROM THE EDIACARAN THROUGH ALL OF THE PHANEROZOIC
  T138 Effects of Mineral-Water Interface Complexity on Geochemical Processes: A Session in Honor of Mineralogical Society of America Awardee for 2018, Laura Nielsen Lammers
  Monday, 23 September 2019

  1:30 PM - 5:30 PM

  Room 229B, North Building
• ENVIRONMENT OF THE EARLIEST EUKARYOTIC MICROFOSSILS: INSIGHTS FROM THE PALEOPROTEROZOIC CHUANLINGGOU FORMATION
  T104 New Voices in Geobiology (Posters)
  Monday, 23 September 2019

  9:00 AM - 6:30 PM

  Hall AB, North Building

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2018

• ESTIMATING THE DURATION OF THE CAMBRIAN EXPLOSION
  257 D16. Paleontology, Macroevolution and Biogeography (Posters)
  Wednesday, 7 November 2018

  9:00 AM - 6:30 PM

  Halls J-K
• TOTAL ORGANIC CARBON AND THE PRESERVATION OF PRECAMBRIAN ORGANIC-WALLED MICROFOSSILS IN SHALES
  T87 Earth and Life Co-Evolution in the Early to Middle Neoproterozoic (1000 to ca. 635 Ma)
  Monday, 5 November 2018

  8:00 AM - 12:00 PM

  Room 143-144
• GLOBALLY WIDESPREAD APATITIC SCALE MICROFOSSILS OF THE MID-TONIAN
  T87 Earth and Life Co-Evolution in the Early to Middle Neoproterozoic (1000 to ca. 635 Ma)
  Monday, 5 November 2018

  8:00 AM - 12:00 PM

  Room 143-144
• MODIFIED ACID-MACERATION METHOD FOR EXTRACTING PALYNOMORPHS FROM NEOPROTEROZOIC GLACIOGENIC DIAMICTITES
  T111 Insights from Microfossils, Palynology, and Their Modern Analogs: From Traditional to Emerging Techniques (Posters)
  Monday, 5 November 2018

  9:00 AM - 6:30 PM

  Halls J-K
• SMALL SHELLY FOSSILS FROM A SECTION OF THE MONTEZUMAN–DYERAN (CAMBRIAN STAGES 3–4) POLETA FORMATION, ESMERALDA COUNTY, NEVADA
  39 D25. Paleontology, Systematics and Morphological Patterns (Posters)
  Sunday, 4 November 2018

  9:00 AM - 5:30 PM

  Halls J-K

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2017

• ORGANIC-WALLED MICROFOSSILS FROM THE ~1 GA BYLOT SUPERGROUP, BAFFIN ISLAND
  T324 The Co-Evolution of Life and Its Environment during the Precambrian: The “Boring Billion” and Mid-Proterozoic Emergence of Complex Life
  Wednesday, 25 October 2017

  8:00 AM - 12:00 PM

  Skagit 5
• A VIEW OF MICROBIAL ECOSYSTEMS AND OXYGEN FROM THE MID-NEOPROTEROZOIC (780–730 MA) CHUAR GROUP, GRAND CANYON SUPERGROUP, ARIZONA
  T11 Oxygen and Ecosystems from the Proterozoic to the Paleozoic
  Sunday, 22 October 2017

  8:00 AM - 12:00 PM

  Room 607
• EARLY ONTOGENY OF THE SHELLS OF PELAGIELLID MOLLUSCS AND HYOLITHS FROM THE CAMBRIAN (DYERAN) PIOCHE FORMATION, SOUTHEASTERN NEVADA
  1 D13. Paleontology, Phylogenetic/Morphological Patterns: Invertebrates
  Sunday, 22 October 2017

  8:00 AM - 12:00 PM

  Room 604

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2016

• CHANCELLORIID SCLERITES FROM THE DYERAN–DELAMARAN (“LOWER”–“MIDDLE” CAMBRIAN) BOUNDARY INTERVAL OF THE PIOCHE–CALIENTE REGION, NEVADA, USA
  T224 The Early Paleozoic World: Radiations, Extinctions, and Paleoenvironmental Change I
  Tuesday, 27 September 2016

  1:30 PM - 5:30 PM

  Mile High Ballroom 3C
• ACCOUNTING FOR THE SIGNOR-LIPPS EFFECT IN ESTIMATING THE DURATION AND NUMBER OF PULSES IN THE CAMBRIAN EXPLOSION
  76 Paleontology, Diversity, Extinction, Origination (Posters)
  Sunday, 25 September 2016

  9:00 AM - 5:30 PM

  Exhibit Hall E/F
• TINY VAMPIRES IN ANCIENT SEAS: EVIDENCE FOR PREDATION VIA PERFORATION IN MICROFOSSILS FROM THE 740-780 MA CHUAR GROUP, GRAND CANYON, ARIZONA
  22 Recent Advances in Paleontology and Paleoecology
  Wednesday, 6 April 2016

  8:30 AM - 12:30 PM

  Meeting Room 200 AB
• A NEW CAMBROCLAVE (METAZOA INCERTAE SEDIS) FROM THE MID-CAMBRIAN PIOCHE FORMATION, SOUTHEASTERN NEVADA
  22 Recent Advances in Paleontology and Paleoecology
  Wednesday, 6 April 2016

  8:30 AM - 12:30 PM

  Meeting Room 200 AB

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2015

• TINY VAMPIRES IN ANCIENT SEAS: EVIDENCE FOR PREDATION VIA PERFORATION IN NEOPROTEROZOIC MICROFOSSILS
  T69 Timing of the Origins and Evolution of Unicellular Eukaryotes
  Sunday, 1 November 2015

  1:30 PM - 5:30 PM

  Room 316
• SMALL SHELLY FOSSILS FROM THE DYERAN-DELAMARAN (“LOWER”-“MIDDLE” CAMBRIAN) BOUNDARY INTERVAL OF THE PIOCHE-CALIENTE REGION, NEVADA, USA
  3 Paleontology: Ancient Life in Deep Time: Temporal and Geographic Trends in Fossil Distributions
  Sunday, 1 November 2015

  8:00 AM - 12:00 PM

  Room 316
• ACCOUNTING FOR THE SIGNOR-LIPPS EFFECT IN ESTIMATING THE DURATION AND NUMBER OF PULSES IN THE CAMBRIAN EXPLOSION
  42 Paleontology: The Analytical Toolkit: Evaluating Bias, Specimens, and Relationships (Posters)
  Sunday, 1 November 2015

  9:00 AM - 5:30 PM

  Exhibit Hall

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2014

• CHUMP (CHUAR-UINTA MOUNTAIN-PAHRUMP) STRATA OF THE WESTERN U.S. RECORD CRETACEOUS – LIKE OCEAN ANOXIC EVENTS (OAES) BEFORE SNOWBALL EARTH
  T258 The Tonian-Cryogenian World
  Tuesday, 21 October 2014

  1:00 PM - 5:00 PM

  220
• ESTIMATING THE DURATION AND TEMPO OF THE CAMBRIAN EXPLOSION
  146 Paleontology: New Insights from Quantitative Paleobiology
  Monday, 20 October 2014

  1:00 PM - 5:00 PM

  220
• SMALL SHELLY FOSSILS FROM THE DYERAN AND DELAMARAN (LOWER AND MIDDLE CAMBRIAN) OF NEVADA, USA
  30 Paleontology: The Ediacaran to Early Paleozoic World (Posters)
  Sunday, 19 October 2014

  9:00 AM - 5:00 PM

  Exhibition Hall C

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2013

• POSSIBLE SCALE-BEARING PROTISTS IN THE MID-NEOPROTEROZOIC CHUAR GROUP, GRAND CANYON, AND UINTA MOUNTAIN GROUP, UTAH
  300 Early Life and Taphonomy
  Wednesday, 30 October 2013

  8:00 AM - 12:00 PM

  Mile High Ballroom 1EF
• HIGH MORPHOLOGICAL DIVERSITY OF ORGANIC-WALLED MICROFOSSILS FROM THE MID-NEOPROTEROZOIC ALINYA FORMATION, OFFICER BASIN, AUSTRALIA
  300 Early Life and Taphonomy
  Wednesday, 30 October 2013

  8:00 AM - 12:00 PM

  Mile High Ballroom 1EF
• SHELL MICROSTRUCTURES OF CAMBRIAN HYOLITHOMORPH HYOLITHS
  300 Early Life and Taphonomy
  Wednesday, 30 October 2013

  8:00 AM - 12:00 PM

  Mile High Ballroom 1EF
• ESTIMATING THE TEMPO OF THE CAMBRIAN EXPLOSION
  36 Phylogeny, Morphology and Evolution (Posters)
  Sunday, 27 October 2013

  9:00 AM - 6:30 PM

  Hall D

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2012

• TWO STRANGE SHELLY FOSSILS FROM THE LOWER CAMBRIAN OF SOUTHEASTERN SHAANXI PROVINCE, CHINA
  259 Paleontology: Biostratigraphy and Taphonomy
  Wednesday, 7 November 2012

  1:30 PM - 5:30 PM

  217BC
• DIVERSITY AND ECOLOGICAL COMPLEXITY IN ORGANIC-WALLED MICROFOSSIL ASSEMBLAGES FROM THE MID-NEOPROTEROZOIC CHUAR GROUP, GRAND CANYON, ARIZONA
  158 Paleontology: Taphonomy, Paleoecology, and Diversity Dynamics (Posters)
  Tuesday, 6 November 2012

  9:00 AM - 6:00 PM

  Hall B
• FUELING THE SNOWBALL EARTH BIOGEOCHEMICAL RECOVERY: EVIDENCE FOR A BIO-INORGANIC BRIDGE
  T191 Geochemical Proxies for Ancient Ocean Chemistry: Implications for Links Between Ocean Chemistry, Plate Tectonics, Sea Level, and Climate throughout the Late Precambrian and Phanerozoic
  Tuesday, 6 November 2012

  1:30 PM - 5:30 PM

  202AB
• FOSSIL EVIDENCE FOR A CRYOGENIAN DIVERSITY CRISIS
  67 Paleontology: Extinction, Origination and Recovery
  Monday, 5 November 2012

  8:00 AM - 12:00 PM

  217A
• QUALITATIVE AND QUANTITATIVE ASSESSMENT OF TAPHONOMIC PATTERNS IN MODERN ALGAE AND CYANOBACTERIA: IMPLICATIONS FOR IDENTIFYING PRECAMBRIAN MICROFOSSILS
  T92 Sigma Gamma Epsilon Undergraduate Research (Posters)
  Monday, 5 November 2012

  9:00 AM - 6:00 PM

  Hall B

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2011

• PRELIMINARY PALEONTOLOGICAL DATA FOR FIVE CRYOGENIAN SILICICLASTIC UNITS
  T256 New Horizons in Precambrian Palynology and Paleobiology (Posters)
  Wednesday, 12 October 2011

  9:00 AM - 6:00 PM

  Hall C
• CHANCELLORIID SCLERITES FROM THE LOWER CAMBRIAN (MEISHUCUNIAN) OF EASTERN YUNNAN, CHINA
  226 Paleontology IV: Morphology and Phylogeny
  Wednesday, 12 October 2011

  8:00 AM - 12:00 PM

  Room 205CD
• THE EARLY BODY FOSSIL RECORD OF EUKARYOTES
  T56 New Horizons in Precambrian Palynology and Paleobiology
  Sunday, 9 October 2011

  1:30 PM - 5:30 PM

  Room 205CD

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2010

• THE EARLIEST CAMBRIAN RECORD OF ANIMALS AND OCEAN GEOCHEMICAL CHANGE
  T161 Understanding High-Amplitude Stable Isotope Variations in Proterozoic Strata
  Tuesday, 2 November 2010

  8:00 AM - 12:00 PM

  Room 207
• EARLY CAMBRIAN SMALL SHELLY FOSSILS FROM SOUTHEASTERN SHAANXI PROVINCE, CHINA
  T189 The Precambrian-Cambrian Ecosphere (R)evolution: Insights from Chinese Microcontinents (Posters)
  Tuesday, 2 November 2010

  8:00 AM - 6:00 PM

  Hall D
• CALCITE AND ARAGONITE SEAS AND THE DE NOVO ACQUISITION OF CARBONATE SKELETONS THROUGH THE PHANEROZOIC
  77 Paleontology IV - Environmental Controls on Ecology and Evolution
  Monday, 1 November 2010

  8:00 AM - 12:00 PM

  Room 605

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2009

• CAMBROTHYRA AMPULLIFORMIS, AN UNUSUAL COELOSCLERITOPHORAN FROM THE LOWER CAMBRIAN OF SHAANXI PROVINCE, CHINA
  265 Paleontology: Development & Morphology
  Wednesday, 21 October 2009

  1:30 PM - 5:30 PM

  Portland Ballroom 255

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2008

• Aragonite and Calcite Seas and the Evolution of Carbonate Skeletons
  T168 Paleontological and Sedimentological Consequences of Calcite and Aragonite Sea Dynamics
  Sunday, 5 October 2008

  1:30 PM - 4:45 PM
• Evidence for Eutrophication in the >742±6 Ma Chuar Group, Grand Canyon, and Possible Implications for Neoproterozoic Glaciation
  T125 Deep Time Earth Life Observatories (DETELOs): Focusing on Critical Transitions in the History of Life
  Sunday, 5 October 2008

  8:00 AM - 12:00 PM

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2006

• CARBONATE SKELETAL MINERALOGY REFLECTS CHEMISTRY OF OCEAN IN WHICH SKELETON FIRST EVOLVED
  121 Paleontology/Paleobotany IV: Early Life and the Cambrian Explosion
  Tuesday, 24 October 2006

  8:00 AM - 12:00 PM
• MORE SHELL MICROSTRUCTURES IN CAMBRIAN MOLLUSCS
  121 Paleontology/Paleobotany IV: Early Life and the Cambrian Explosion
  Tuesday, 24 October 2006

  8:00 AM - 12:00 PM

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2005

• SKELETAL MICROSTRUCTURE INDICATES A CLOSE RELATIONSHIP BETWEEN CHANCELLORIIDS AND OTHER COELOSCLERITOPHORANS
  T219 The Dawn of Animal Life: Evolutionary and Paleoecological Patterns in the Neoproterozoic-Cambrian Animal Fossil Record
  Wednesday, 19 October 2005

  8:00 AM - 12:00 PM

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2004

• PRECAMBRIAN PROTOZOA
  T171 Protistan Paleobiodiversity: Understanding Evolutionary Patterns
  Tuesday, 9 November 2004

  1:30 PM - 5:30 PM
• THE NEOPROTEROZOIC UINTA MOUNTAIN GROUP REVISITED: A SYNTHESIS OF RECENT WORK ON THE RED PINE SHALE AND RELATED UNDIVIDED CLASTIC STRATA, NORTHEASTERN UTAH
  36 Proterozoic Geology of the Northwest U.S.: Basement and Tectonic Setting of the Belt Basin and Succeeding Windermere Supergroup
  Wednesday, 5 May 2004

  8:40 AM - 12:00 PM

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2003

• CHEMOSTRATIGRAPHY OF NEOPROTEROZOIC 'CAP' CARBONATES FROM THE VOLTA BASIN, WEST AFRICA
  239 Precambrian Geology
  Wednesday, 5 November 2003

  1:30 PM - 5:30 PM