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David Liddell

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Sedimentology and Paleoecology

Faculty

Professor

Contact Information

Office Location: Geology 212
DialPhone: 435.797.1261
SendEmail: dave.liddell@usu.edu


Educational Background

PhD, Geology, University of Michigan, 1980
Population Variability and Resource Utilization Patterns of Caribbean Comatulid Crinoids (Echinodermata)
MS, Geology, University of Michigan, 1975
Biostratinomy and Ecology of a Middle Ordovician Echinoderm Assemblage from Kirkfield, Ontario
BA, Zoology, Miami University, 1973

Biography

I grew up in southern Ohio and became interested in paleontology at an early age. This led to undergraduate study at Miami University of Ohio and graduate study at the University of Michigan. My interests eventually expanded to include the sediments that the fossils occurred in and the information they provided about past sea levels, tectonics and climate.


Teaching Interests

My teaching interests are focused on sedimentology and paleoecology and the application of quantitative methods to the analysis of sedimentologic and paleontologic data. All of my courses are strongly field oriented as I believe students learn geologic concepts best in a field, rather than classroom setting.

Research Interests

Within the broad field of sedimentary geology and paleoecology my research interests have largely centered on modern carbonate environments, Paleozoic hard substrata communities, taphonomy and sequence stratigraphy. My studies on carbonate environments have been directed toward the following: (1) evaluating the physical and biological factors influencing reef and adjacent deep-water hard substrata community structures; (2) developing models for the evaluation of change in reef communities and documenting long-term trends in such communities; (3) developing microfacies models for Holocene environments (fringing reef, lagoon and basin settings) which utilize macrofaunal, microfaunal, taphonomic, and sedimentologic data; and (4) determining the food and habitat requirements of certain extant marine groups (e.g. crinoids), which may aid in understanding the paleobiology of their fossil counterparts. Studies of hard substrata communities have been focused on delineating diversity patterns throughout the Paleozoic and have included studies of Cambrian and Ordovician hardground communities, competition for space between Silurian epizoans, and cryptic communities inhabiting Silurian and Devonian bioherms. Ultimately, such studies may extend into the Mesozoic and Cenozoic Eras in order to compare the temporal patterns (diversifications, extinctions) displayed by these evolutionarily-conservative communities to those of other marine benthos. Taphonomic studies have largely examined foraminifera and the effects of transportation and test destruction upon preserved foraminiferal biofacies. My students and I are currently working on the sequence stratigraphy of Middle Cambrian rocks in Utah (especially the Spence and Wheeler Shales). We are examining the effect of sea-level oscillations on litho-, bio- and taphofacies.

Publications - Abstracts

  • Kehoe, K.K, Davis, C.R, Newell, D.L, Liddell, W.D, (2015). High-Resolution Carbon and Oxygen Stable Isotope Sampling of the Lower Ordovician Pogonip Group: Implications for Chemo-Stratigraphic Correlation. Geological Society of Amerida Abstracts with Programs
  • Kehoe, K.K, Davis, C.R, Liddell, W.D, Newell, D.L, (2014). Bio-, Chemo- and Sequence Stratigraphy of Lower Ordovician Units From Differing Depositional Settings Along the Western Margin of Northern Laurentia. Geological Society of Amerida Abstracts with Programs
  • Bahr, K., Liddell, W.D, Giles, N.S, Smith, H.D, (2011). Structural and Lithologic Influences on Karst Systems in the Tony Grove Area. Geol Soc Am Abstr. w/Prog
  • Lyon, E., Liddell, W.D, Gunther, V., Gunther, G., Jamison, P., (2011). The Sequence Stratigraphy and Biostratigraphy of the Middle Cambrian Spence Shale. Geol Soc Am Abstr. w/Prog
  • Liddell, W.D, Shervais, J.W, (2009). Applied geosciences in the modern geology curriculum. Geol Soc Am. Abstr. w/Prog
  • Liddell, W.D, Smith, D.D, (2007). Sequence stratigraphy of the Middle Cambrian Marjum Formation: Response of sedimentary facies and biota to sea level. Geol. Soc. Am. Abstr. w/Prog
  • Westfield, I.T, Liddell, W.D, (2005). Cambrian microbial communities along a bathymetric gradient.. Geol. Soc. Am. Abstr. w/ Prog
  • Brett, C., Desantis, M.K, Allison , P.A, Liddell, W.D, (2005). Sequence stratigraphy and lagerstatten in the Middle Cambrian, Great Basin, Utah. Geol. Soc. Am. Abstr. w/ Prog
  • Liddell, W.D, (2005). Spatial competition in marine hard substrate communities: An overview. Geol. Soc. Am. Abstr. w/ Prog.

Publications - Books & Book Chapters

    Books

  • Liddell, W.D, Tunnel, J.W, Holmes, C., (2010). Mexican reefs of the Gulf of Mexico. : Gulf of Mexico – It’s Origins, Waters, and Marine Life. Texas A&M University Press
  • Liddell, W.D, Tunnel Jr., J.W, Chavez, E.A, Withers, K., (2007). Origin and Geology: Coral Reefs of the Southern Gulf of Mexico, Harte Research Institute for Gulf of Mexico Studies Series. Texas A&M University Press

* Has not been peer reviewed

Publications - Fact Sheets

    * Has not been peer reviewed

    Publications - Curriculum

      * Has not been peer reviewed

      Publications - Journal Articles

        Academic Journal

      • Garson, D., Gaines, R., Drosser, M., Liddell, W.D, (2012). Dynamic palaeoredox and exceptional preservation in the Cambrian Spence Shale of Utah. Lethaia, 54:2, 164-177.
      • Brett, C.E, Allison, P.A, Desantis, M.K, Liddell, W.D, Kramer, A., (2009). Sequence stratigraphy, cyclic facies, and lagerstatten in the Middle Cambrian Wheeler and Marjum Formations, Great Basin, Utah. Palaeogeography, Palaeoclimatology, Palaeoecology, 227, 9-33.

      * Has not been peer reviewed

      Publications - Literary Journal

        * Has not been peer reviewed

        Publications - MultiMedia

          * Has not been peer reviewed

          Publications - Technical Reports

            * Has not been peer reviewed

            Publications - Translations & Transcripts

              Publications - Other

                * Has not been peer reviewed

                Scheduled Teaching

                GEO 6350 - Graduate Seminar in Paleontology and Paleoecology (Topic), Spring 2018

                GEO 5540, 6540 - Quantitative Methods in Geology, Spring 2018

                GEO 2500 - Geology Field Excursions, Fall 2017

                GEO 3550 - Sedimentation and Stratigraphy, Fall 2017

                GEO 3550 - Sedimentation and Stratigraphy, Fall 2016

                GEO 3550 - Sedimentation and Stratigraphy, Fall 2015

                GEO 3550 - Sedimentation and Stratigraphy, Fall 2014

                GEO 6990 - Continuing Graduate Advisement, Spring 2014

                GEO 7990 - Continuing Graduate Advisement, Spring 2014

                GEO 6820 - Graduate Seminar Series, Spring 2014

                GEO 5540,6540 - Quantitative Methods in Geology, Spring 2014

                GEO 6990 - Continuing Graduate Advisement, Fall 2013

                GEO 6900 - Graduate Internship/Co-op Experience, Fall 2013

                GEO 3550 - Sedimentation and Stratigraphy, Fall 2013

                GEO 4800,6820 - Senior Seminar, Fall 2013

                GEO 2500 - Geology Field Excursions, Spring 2013

                GEO 3550 - Sedimentation and Stratigraphy, Fall 2012

                GEO 5540,6540 - Quantitative Methods in Geology, Fall 2011

                GEO 3550 - Sedimentation and Stratigraphy, Fall 2011

                GEO 6800 - SEMINAR, Spring 2011

                GEO 3550 - Sedimentation and Stratigraphy, Fall 2010


                Graduate Students Mentored

                Kenneth Kehoe, Geology
                Murray Dighans, Geology
                Ibrahim Zallum, Geology 2017
                Colter Davis, Geology 2017
                Kirsten Bahr, Geology 2016
                Ryan Jensen, Geology 2015
                Heidi Pearce, Geology 2012
                Eva Lyon, Geology 2011
                Dustin Keele, Geology 2008
                Thaddeus Nichols, Geology 2008
                Douglas Smith, Geology 2007
                B.J. Kessel, Geology 2006