| 2006. | Historical Geology, San Francisco State University. |
|---|---|
| 2003. | The Nature of Species, California Academy of Sciences. |
| 2003. | Evolution and the Fossil Record, California Academy of Sciences. |
| 2001. | History of Life, San Francisco State University. |
| 1998. | Paleontology, University of Arizona. |
| 1997. | Biometry, Southeast Missouri State University. |
| 1994-1997. | General Zoology, Southeast Missouri State University. |
| 1994-1997. | Aquatic Invertebrate Zoology, Southeast Missouri State University. |
| 1994-1997. | Terrestrial Invertebrate Zoology, Southeast Missouri State University. |
| 1994. | Biological Oceanography, University of California Davis. |