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Dr. Thomas Stemann

Current Research

  • Overview of coral biodiversity in Jamaica from the Late Eocene through Miocene.
  • Coral Community turnover during the Oligocene/Miocene transition in the Caribbean
  • Paleocene corals of Colombia.
  • Biostratigraphy of Jamaican Cretaceous solitary corals (in conjunction with Dr. S.Mitchell)
  • Quantitative assessment of coral communities and reef growth during the late Pleistocene

Research Grants:

National Geographic Society Grant 2008 to Present
Regional Mass extinction in the Caribbean Late Neogene –Extending detailed studies from Panama and Costa Rica into Jamaica and the central Caribbean , with Principal Investigator Prof. Jeremy Jackson (Scripps Institution of Oceanography).

National Geographic Society Grant #7278-02 . 2004-2006
Pliocene reefs of Jamaica : implications for biodiversity and faunal turnover. – Covering work on the Hopegate Formation, Jamaica in association with principal investigator Dr. S.K. Donovan ( Nationaal Natuurhistorisch Museum , Leiden , The Netherlands) and R. Portell (Florida Museum of Natural History, Gainesville , Florida ).

National Geographic Society Grant . July/August 2004
Eocene vertebrate fauna from Seven Rivers, St. James, Jamaica. – Covering field work excavating fossil manatee and other vertebrate material in association with principal investigator Dr. Daryl Domning ( Howard University )

Selected Publications

Loeser, H., T.A. Stemann & S. Mitchell, 2009. Oldest scleractinian fauna from Jamaica (Hauterivian, Benbow Inlier). Journal of Paleontology 83(3):333-349.

Collins, J.S.H., S.K. Donovan, T. A. Stemann , 2009. Fossil Crustacea of Late Pliocene Port Morant Formation, west Port Morant Harbour, southeastern Jamaica. Scripta Geologica 138:23-53, 7 pls. 1 fig. 1 tab.

Stemann, T. A . and S. K. Donovan, 2008. Paleo-channel or sinkhole? Reinterpretation of an enigmatic structure near Discovery Bay, north central Jamaica. Caribbean Journal of Scienc e. 44 (2): 242-245.

Stemann, T.A., G. Gunter, and S. Mitchell, 2007. Reef coral diversity in the Late Maastrichtian of Jamaica. Schriftenreihe der Erdwissenschaftlichen Kommissionen , Austrian Academy of Sciences , p. 455-469.

Donovan, S.K. & Stemann, T.A. 2006. Where have all the sponges gone? The significance of spicules from the Upper Pliocene Hopegate Formation of Jamaica. Caribbean Journal of Science , 42 (2):239-243 .

 Stemann, T. A . 2004. Reef corals of the White Limestone Group of Jamaica. Cainozoic Research 3(1-2), p. 83-107.

Mitchell, S., T. A. Stemann , D. Blissett, I. Brown, W. OBrian Ebanks, G. Gunter, D. J. Miller, A. Pearson, B. Wilson and W. Young, 2004. Late Maastrichtian rudist and coral assemblages from the Central Inlier , Jamaica : towards an event stratigraphy for shallow-water Caribbean limestones . Cretaceous Research , 25(4):499-507.

Mitchell, S.F., R.K. Pickerell, and T.A. Stemann, 2001. the Port Morant Formation (Upper Pleistocene, Jamaica): high resolution sedimentology and paleoenvironmental analysis of a mixed carbonate clastic lagoonal succession. Sedimentary Geology 144:291-306.

Budd, A. F., K. G. Johnson and T. A. Stemann, and B.H. Tompkins, 1999. Pliocene to Pleistocene reef coral assemblages in the Limon Group of Costa Rica. In: L. S. Collins & A. G. Coates (eds.),: A Paleobiotic Survey of Caribbean Faunas from the Neogene of the Isthmus of Panama. Bulletins of American Paleontology, no. 357, 119-158.

Stemann, T. A., 1997. The Salt Mountain Limestone of Alabama: Part IV, Corals. Tulane Studies in Geology and Paleontology, 30(1):31-38.

Bosellini, F. and T. A. Stemann, 1996. Autoecologic significance of growth form in the scleractinian Actinacis rollei Reuss (Oligocene, Lessini Mountains, Northern Italy). Bollettino della Società Paleontologica Italiana Spec. Vol. 3:31-43.

Budd, A. F., F. Bosellini and T. A. Stemann, 1996. Systematics of the Oligocene to Miocene reef coral Tarbellastraea in the Northern Mediterranean region. Palæontology 39:515-560.

Budd, A. F., K. G. Johnson and T. A. Stemann, 1996. Plio-Pleistocene turnover and extinctions in the Caribbean reef coral fauna. In Evolution and Environment in Tropical America, J. B. C. Jackson, A. F. Budd, & A. G. Coates (eds.) Chicago: The University of Chicago Press, pp. 168-204.

Johnson, K. G., A. F. Budd and T. A. Stemann, 1995. Extinction selectivity and ecology of Neogene Caribbean reef-corals. Paleobiology, 21(1):52-73.

Budd, A. F., T. A. Stemann and K. G. Johnson, 1994. Stratigraphic distributions of Neogene to Recent Caribbean reef corals: A new compilation. Journal of Paleontology, 68:951-977.

Budd, A. F., K. G. Johnson and T. A. Stemann, 1993. Plio-Pleistocene extinctions and the origin of the modern Caribbean reef-coral fauna. In: Global Aspects of Coral Reefs: Health, Hazards and History. University of Miami, Rosentiel School of Marine and Atmospheric Science. pp 7-13.

Stemann, T. A. and K. G. Johnson, 1992. Coral assemblages, biofacies, and ecological zones in the mid-Holocene reef deposits of the Enriquillo Valley, Dominican Republic. Lethaia, 25:231-241.

Budd, A. F., T. A. Stemann and R. Stewart,1992. Eocene Caribbean reef corals: A unique fauna from the Gatuncillo Formation of Panama. Journal of Paleontology, 66:578-602.


Manuscripts in Press

Collins, J.S.H., S.K. Donovan, T.A. Stemann & D.J. Blissett, 2010. Crustaceans of the Upper Miocene August Town Formation of eastern Jamaica. Scripta Geologica Special Issue , 7 :


Papers Presented at Conferences (published abstracts):

Stemann, T. A. 2008. Early Cenozoic recovery of Caribbean reef coral communities. 11 th International Coral Reef Symposium, 2008 July 7-11, 2008 , Ft. Lauderdale , FL , Abstracts, p. 7.

Stemann, T. A. 2008. Re-evaluating the biogeography of Cenozoic Caribbean reef corals. Abstracts and Program, 18 th Caribbean Geological Conference, Santo Domingo , DR 24-28 March 2008, p. 69.

Stemann, T. A. 2007. Pennular-like structures in modern and fossil scleractinian corals of the family Agariciidae. X International Congress on Fossil Cnidaria and Porifera 12- 17 August 2007 , Proceedings Abstracts, St. Petersberg , Russia .

Stemann, T. A. , 2006. Disturbance and the size of Acropora palmata on Late Pleistocene Jamaican reefs . Geological Society of America Abstracts with Programs , Vol. 38, No. 7, p. 535.

James, S., T. A. Stemann and S. Mitchell, 2006. Coral reefs and patch reefs at Dead Man's Bone's, rapid burial or slow sediment stress? Geological Society of America Abstracts with Programs, Vol. 38, No. 7, p. 515.

Stemann, T. A ., S. F. Mitchell and G. C. Gunter, 2005. Coral communitites in the Latest Maastrichtian of Jamaica. Geological Society of America Abstracts with Programs , Vol. 37, No. 7, p. 527.

Stemann, T. A. 2005. Hopegate Formation reefs and uplift in northern Jamaica . Geological Society of Jamaica 50 th Anniversary Conference, Programme, Abstracts and Field Guides , p.15.

Stemann, T. A ., Mitchell, Simon F., and Gunter, Gavin C. 2005. Coral communitites in the Latest Maastrichtian of Jamaica. Geological Society of America Abstracts with Programs , Vol. 37, No. 7, p. 527.

Stemann, T. A., S.K. Donovan, and R. W. Portell, 2005. Extinct and extant reef corals coexisting on a fossil reef tract from northern Jamaica. Proceedings of the 7 th Conference, Faculty of Pure and Applied Sciences , The University of the West Indies, Mona, p. 43-44.

Stemann, T.A ., S. Donovan, R. Portell, 2004. Late Pliocene reef coral associations from the Hopegate Formation of northern Jamaica . Geological Society of America Abstracts with Programs , Vol. 36, No. 2, p. 134.

Donovan, S., R. Portell and T.A. Stemann , 2004. Macropaleontology of the Hopegate Formation, Jamaica , an Upper Pliocene raised reef. Geological Society of America Abstracts with Programs , Vol. 36, No. 2, p. 110.


  • GL10A/GEOL1001: Introduction to Earth Sciences I
  • GL10B/GEOL1002: Introduction to Earth Sciences II
  • GL21A/GEOL2001: Paleontology
  • GL311: Field Mapping
  • GG32E/GGEO3203: Disaser Management

Graduate Students

Deborah Ann Cidonnee Rowe - Project Title "Eocene Echinoidea of Swanswick Formation, Upper Eocene Jamaica".


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