2009
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Founders Symposium 1999
The K-T Boundary: Extinction & Emergence
March 20 & 21, 1999

65 million years ago much of life on earth was decimated. The 160-million year reign of the dinosaurs came to an end, and new species emerged to take their place. The causes of this mass extinction, and the time surrounding it, are among the most studied topics in paleontology. Our first Founders Symposium examined the millennia surrounding what is known geologically as the K-T Boundary, the point where the Cretaceous Period ended and the Tertiary Period began. Over a dozen speakers explored topics that covered the history, geology, flora, fauna and of the K-T Boundary. The next day, field trips to nearby Dinosaur Ridge and South Table Mountain, Colorado, focused on Cretaceous and Paleocene geology and fossils. The trips included a stop to see a K-T Boundary exposure on South Table Mountain.

1999 Speakers – Saturday

Louis Jacobs, Ph.D.
Mass Extinctions: Similarities and Differences
Southern Methodist University

Dave Warren and Michon Scott
Western Interior Paleontological Society
The History of Geologic Time to the Kreidezeit-Tertiary Boundary

Bruce Hartel
Western Interior Paleontological Society
The Mechanics of Extinction at the K-T Boundary: The Chixuluub Impact and Walter Alvarez’ Great Deduction

Peter Laux
State of Colorado
Extraterrestrial Impacts on Geology and Earth History

Jordan Sawdo
Western Interior Paleontological Society
Volcanism’s Role in Mass Extinctions

James Kirkland, Ph.D.
Dinamation International
Patterns of Extinction During the Cretaceous: Contrasts to the Terminal K-T Boundary Extinction

Doug Nichols, Ph.D.
U.S. Geological Survey
The End of an Era: Evidence for a Continent-Wide Catastrophe at the K-T Boundary

Kirk Johnson, Ph.D.
Denver Museum of Nature & Science
The End of an Era: Evidence of Ecosystem Devastation at the K-T Boundary Southwestern North Dakota

Bob Rushforth
Western Interior Paleontological Society
A Mathematical Study of the Causes of Mass Extinctions

Jeff Stephenson
Denver Museum of Nature & Science
Catastrophe or Coincidence?

Jerry Suchan, Ph.D.
Western Interior Paleontological Society
An Introduction to the Denver and Dawson Formations

Robert G. Raynolds, Ph.D.
Denver Museum of Nature & Science
The Quest for the Cretaceous-Tertiary Boundary in the Denver Basin

Anthony Fiorillo, Ph.D.
Dallas Museum of Natural History
Taphonomy at the K-T Boundary

Louis Taylor, Ph.D.
Denver Museum of Nature & Science & Western Interior Paleontological Society
Symposium Moderator

1999 Field Trip – Sunday Field Trip Speakers & Guides

Dinosaur Ridge

Robert G. Raynolds, Ph.D.
Denver Museum of Nature & Science

Martin Lockley, Ph.D.
University of Colorado at Denver

Karen Hester
Friends of Dinosaur Ridge

William T. Caneer
Friends of Dinosaur Ridge

South Table Mountain

Kirk Johnson, Ph.D.
Denver Museum of Nature & Science
Formations and Fossil Plants of the Western Denver Basin

Robert G. Raynolds, Ph.D.
Denver Museum of Nature & Science
Green Mountain

Bryan Cooney
Pat Ervin
Beth Fisher
Jordan Sawdo
Western Interior Paleontological Society