---

Activity

2021

• NEW REPORT OF SHALE-HOSTED ORGANIC-WALLED MICROFOSSILS FROM THE EARLY MESOPROTEROZOIC DISMAL LAKES GROUP IN ARCTIC CANADA
  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)
• PRIMARY PRODUCERS IN THE ~1GYRS-OLD MBUJI-MAYI SUPERGROUP (DR CONGO)
  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)

---

2020

• EVIDENCE OF PHOTOSYNTHESIS SHOWED BY NI-PORPHYRIN PRESERVATION IN ~1 GYR-OLD EUKARYOTES
  T110 Evolving Perspectives on the Tonian Biosphere and Environmental Change
  Wednesday, 28 October 2020

  10:00 AM - 12:00 PM

  Meeting Rooms

---

2009

• MICROFOSSIL EVIDENCE FOR +21 M EUSTATIC SEA LEVEL DURING MARINE ISOTOPE STAGE 11
  T205 Coastal Problems, Micropaleontological Approaches
  Tuesday, 20 October 2009

  1:30 PM - 5:30 PM

  Portland Ballroom 255

---

2004

• PROTISTAN EVOLUTION IN THE PRECAMBRIAN: A NEW MULTIDISCIPLINARY APPROACH COMBINING MICROSCOPY AND MICROCHEMISTRY
  T171 Protistan Paleobiodiversity: Understanding Evolutionary Patterns
  Tuesday, 9 November 2004

  1:30 PM - 5:30 PM