Employment 
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9/00-Present Full Professor of Geology, The Colorado College. Responsible for the following courses: Sedimentation and Stratigraphy, Invertebrate Paleontology, Historical Geology, Sedimentary Petrology, Historical Geology, Introductory Geology, Oceanography, Natural Science, Regional Geology, Marine Geology.
- 9/93-9/00 Associate Professor of Geology, The Colorado College.
- 9/87-9/93 Assistant Professor of Geology, The Colorado College.
- 3/91 Crosby Lecturer, Massachusetts Institute of Technology. Visiting Scholar for graduate-level field class aimed at stratigraphic and sedimentological analysis of mixed siliclastic-carbonate Pennsylvanian units in southern Nevada.
- 6/89 Instructor at Northern Arizona University summer field geology course. A ten day period of instruction included field lectures/discussions, measuring of stratigraphic sections, and detailed measurement and description of sedimentary structures.
- 7/88-8/88 Geological Consultant and Researcher, Geological Association of Canada Research Field Party, Bathurst Inlet, Northwest Territories. Investigation of the sedimentology and stratigraphy of Precambrian (1.9 Ga) foreland basin deposits: Bear Creek Group, Tinney Hills area of the Kilohigok Basin.
- 9/83-5/86 Laboratory Demonstrator for courses in Crystallography, Optical Mineralogy, and Advanced Sedimentology. Memorial University, St. John's, Newfoundland.
- 9/80-1/83 Graduate Teaching Fellow, The University of Vermont, Burlington, Vermont. Responsible for creating, organizing, and grading introductory geology laboratories and field trips. Stipend and tuition remission provided.

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