Recent Research Efforts in Paleontology

 

This work has focussed on looking for evidence of difference types of dynamical processes in the fossil record by looking at:

    1. Large compiled data sets of evolutionary change.
    2. Detailed fossil lineages (stratophenetic series)

 

Accepted: Uncorrelated change produces the apparent dependence of evolutionary rate on

interval, H. David Sheets and Charles E. Mitchell, Paleobiology, summer 2001.

 Accepted, invited paper: Why the Nul Matters:Random Walks and Evolution, H. David

Sheets and Charles Mitchell, slated for submission to the Genetica special issue devoted to microevolution, editted by Andrew Hendry and Michael Kinnison.

 

Difficulties Involved in Extrapolating Generation by Generation Rates of Evolutionary Change to

Paleontological Time Scales, H. David Sheets and Charles E. Mitchell, Geological Society of America, Toronto,

1998

Evolutionary Trajectories: Searching for Evidence of Dynamics from Fossil Lineages, H. David

Sheets, at the 9th Annual Meeting of the Northeast Section of the American Association of Physics Teachers, 1999. Invited talk.

Asymmetry of Response in Tests Designed to Distinguish Between Random Walks, Directed

Selection and Stabilizing Selection in Detailed Evolutionary Lineages., H. David Sheets and Charles E. Mitchell, Evolution99, University of Wisconsin, Madison, Spring 1999.

Submitted:Why do we need a good mathematical model of stabilizing selection in stratophenetic

series? H. David Sheets and Charles E. Mitchell, Geological Society of America, Denver, 1999

Scheduled: Asymmetry of Response in Tests Designed to Distinguish Between Random Walks,

Directed Selection and Stabilizing Selection in Detailed Evolutionary Lineages (Stratophenetic Series), H. David Sheets, New York State Section Meeting of the American Physical Society, SUC Brockport, October 22-23, 1999. Invited Talk

 

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