Dr. Thomas M. Lehman

Professor of Geosciences
Sedimentology, Stratigraphy, Paleontology

Ph.D. 1985 University of Texas, Austin
M.A. 1982 University of Texas, Austin
B.S. 1978 University of New Mexico

Office: SCI 236
Phone: 806-742-3148
email: tom.lehman@ttu.edu

Tom Lehman's research interests are in clastic sedimentology, stratigraphy, depositional systems, and paleontology. He is primarily interested in continental and paralic sedimentary facies, and their preserved vertebrate fauna and flora. Two major areas are the subject of his research: the Upper Cretaceous and early Tertiary strata in the Big Bend region of Texas, and the Upper Triassic, Tertiary and Quaternary strata in the High Plains region of western Texas and eastern New Mexico.
Published Research 2000 to present:

Lehman, T. M. and S. Chatterjee, 2005. Depositional setting and vertebrate biostratigraphy of the Triassic Dockum Group of Texas. Journal of Earth System Science, 114(3):325-351.

Jackson, W. A., S. K. Anandam, T. Anderson, T. Lehman, K. Rainwater, S. Rajagopalan, M. Ridley, and R. Tock, 2005. Perchlorate occurrence in the Texas Southern High Plains Aquifer system. Groundwater Monitoring & Remediation, 25(1):137-148.

Wheeler, E.A., and Lehman, T.M., 2005. Upper Cretaceous - Paleocene conifer woods from Big Bend National Park, Texas. Palaeogeography, Palaeoclimatology, Palaeoecology, 226:233-258.

Murray, B.E., K.E. Anderson, K. Arnold, J. G. Bartlett, C.C. Carpenter, S. Falkow, J.T. Hartman, T. Lehman, T.W. Reid, F. M. Ryburn, R.B. Sack, M.J. Struelens, L.S. Young, and W.B. Greenough, 2005. Destroying the life and career of a valued physician-scientist who tried to protect us from plague: Was it really necessary? Clinical Infectious Diseases, 40:1644-1648.

Lehman, T.M. and S. L. Tomlinson, 2004. Terlinguachelys fischbecki, a new genus and species of sea turtle (Chelonoiodea; Protostegidae) from the Upper Cretaceous of Texas. Journal of Paleontology, 78(6): 1163-1178.

McMahon, P.B., Bohlke, J.K., and T.M. Lehman, 2004. Vertical gradients in water chemistry and age in the Southern High Plains aquifer, Texas, 2002. U.S. Geological Survey, Scientific Investigations Report 2004-5053, 53 p.

Lehman, T. M. and A. B. Coulson. 2002. A juvenile specimen of the sauropod dinosaur Alamosaurus sanjuanensis from the Upper Cretaceous of Big Bend National Park,Texas. Journal of Paleontology 76(1): 156-172.

Kissel, R. A. and T. M. Lehman. 2002. Upper Pennsylvanian tetrapods from the Ada Formation of Seminole County, Oklahoma. Journal of Paleontology 76(3): 529-545.

Lehman, T.M. 2002. Pen and Aguja Formations and a view of the Tornillo Group, pp. 15-20, 54-58. In J. C. White (ed.), The Geology of Big Bend National Park: What Have We Learned Since Maxwell and others (1967)? Geological Society of America, South-Central Section Meeting, Field Trip Guidebook, Sul Ross State University, Alpine,Texas.

Lehman, T.M., and Wheeler, E.A., 2001. A fossil dicotyledonous woodland/forest from the Upper Cretaceous of Big Bend National Park, Texas. Palaios, 16: 102-108.

Lehman, T.M., 2001. Late Cretaceous Dinosaur Provinciality. Chapter 22, in D. Tanke and K. Carpenter (eds.) Mesozoic Vertebrate LIfe, Indiana University Press, p. 310-328.

Lehman, T.M., 2001. Book Review: Fossil Snakes of North America by J.A. Holman. Journal of Paleontology, 75(1): 221.

Wheeler, E. A., and Lehman, T. M., 2000. Late Cretaceous woody dicots from the Aguja and Javelina Formations, Big Bend National Park, Texas, USA. International Association of Wood Anatomists Journal, 21(1): 83-120.

Graduate Student Supervision 2000 to present:

Green, James. M. S. degree in progress. Petrography of sands and gravels from the Ogallala Formation, Southern High Plains, Texas.

Schmidt, David. Ph.D. degree in progress. Stratigraphy and geochemistry of the K/T boundary interval in Big Bend National Park, Texas.

Waggoner, Karen. Ph.D. degree in progress. Morphometrics and systematics of the ammonite genus Placenticeras, and ammonite biostratigraphy of the intertonguing Pen and Aguja Formations (Upper Cretaceous) in the Big Bend region of Texas.

Hunt, ReBecca. 2005. Ceratopsid dinosaurs from the Javelina Formation (Maastrichtian), Big Bend National Park, Texas. M. S. thesis, 104 p.

Woodward, Holly. 2005. Bone histology of the sauropod dinosaur Alamosaurus sanjuanensis from the Javelina Formation, Big Bend National Park, Texas. M. S. thesis, 224 p.

Ashmore, Richard. 2003. Foraminiferal biostratigraphy and petrography of the lower Pen Formation (Upper Cretaceous), Big Bend region, Trans-Pecos Texas. M. S. thesis, 204 p.

Anglen, John. 2001. A vertebrate bone-bed in the Aguja Formation (Upper Cretaceous), Big Bend National Park, Texas. M. S. thesis, 91 p.

Wagner, Jonathan. 2001. The hadrosaurian dinosaurs (Ornithischia: Hadrosauria) of Big Bend National Park, Brewster County, Texas, with implications for Late Cretaceous paleozoogeography. M. S. thesis, 417 p.

Recent funded research projects:

U. S. Environmental Protection Agency - Texas Natural Resource Conservation Commission grant (with A. Jackson, K, Rainwater, T. Anderson, R. Tock, and M. Ridley) to TTU Water Resources Center “Distribution and Potential Sources of Perchlorate in the Southern High Plains Aquifer, Texas” (2002-2004)

U. S. Department of Interior, U.S. Geological Survey EDMAP grant “Geologic Mapping of Tornillo Flat, Big Bend National Park, Texas” (2003)

Andrews Industrial Foundation grant (with co-investigators K. Rainwater and L.Urban - TTU Water Resources Center) “Evaluation of Shallow Groundwater Resources in Andrews County, Texas” (1999-2000).

Texas Department of Transportation grant (with co-investigator P. Jayawickrama, TTU Center for Multidisciplinary Research in Transportation) entitled “Comparative Analysis of the Micro-Deval and Magnesium Sulfate Soundness Tests” (1999-2000).

Denver City Energy Associates grant (with co-investigators K. Rainwater and L. Urban, TTU Water Resources Center) “Subsurface Geology and Groundwater Hydrology of Denver City Energy Associates Properties, Yoakum County, Texas” (1998-1999)

Texas Department of Transportation grant (with co-investigators D. Thompson, H. Ramsey, and T. Molhagen, TTU Civil Engineering) “Minimizing the Adverse Impacts of Stream Channel Modification” (1997-1998).

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