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Activity

2013

• PERIODICITIES IN BIODIVERSITY AND POSSIBLE CAUSAL FACTORS
  T91 The Pulse of the Earth: Episodic and Periodic Events on Timescales of ³10 million Years
  Sunday, 27 October 2013

  1:00 PM - 5:00 PM

  Room 203
• ASTROPHYSICAL EVENTS AS EPISODIC THREATS TO LIFE ON EARTH
  T91 The Pulse of the Earth: Episodic and Periodic Events on Timescales of ³10 million Years
  Sunday, 27 October 2013

  1:00 PM - 5:00 PM

  Room 203

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2012

• DECLINING VOLATILITY, A MACROEVOLUTIONARY PROPERTY OF DISPARATE SYSTEMS: FROM FOSSILS, TO STOCKS, TO THE STARS
  67 Paleontology: Extinction, Origination and Recovery
  Monday, 5 November 2012

  8:00 AM - 12:00 PM

  217A

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2011

• A SYSTEMATIC INCREASE IN ORIGINATION OF LONG-LIVED GENERA
  T79 The Triassic: Turning Point for Phanerozoic Life
  Monday, 10 October 2011

  8:00 AM - 12:00 PM

  Room 205AB
• ASTROPHYSICS AND EXTINCTIONS: NEW RATE ESTIMATES FOR POTENTIALLY LETHAL IONIZING RADIATION EVENTS
  T14 Multidisciplinary Approaches to Studying the Causes and Consequences of Mass Extinction: Geochemistry, Paleoecology, and Paleoenvironments I
  Sunday, 9 October 2011

  8:00 AM - 12:00 PM

  Room 200H-J

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2009

• LATE ORDOVICIAN GEOGRAPHIC PATTERNS OF EXTINCTION COMPARED WITH SIMULATIONS OF ASTROPHYSICAL IONIZING RADIATION DAMAGE
  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

• CONSIDERING THE CASE FOR BIODIVERSITY CYCLES: REEXAMINING THE EVIDENCE FOR PERIODICITY IN THE FOSSIL RECORD
  217 Paleontology VIII: Diversity and Extinction
  Wednesday, 31 October 2007

  1:30 PM - 5:30 PM