| Selected Publications
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| Bretsky, P. W., and S. M. Klofak, 1985, Margin to craton expansion of Late Ordovician benthic marine invertebrates. Science 227:1469-1471.
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| Bretsky, P. W., and S. M. Klofak, 1986, “Rules of Assembly” for two Late Ordovician Communities. Palaios 1:462-477.
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| Bucher, H., N. H. Landman, J. Guex, and S. M. Klofak , 1996, Mode and rate of growth in ammonoids. In N. H. Landman, K. Tanabe, and R.A. Davis (eds.), Ammonoid Paleobiology, New York: Plenum Press, pp. 407-461.
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| Davis, R. A., R. H. Mapes and S. M. Klofak, 1999, Epizoa on Externally Shelled Cephalopods. In A. Yu. Rozanov and A. A. Shevyrev (eds.), Fossil Cephalopods: Recent Advances In Their Study, Moscow: Russian Academy of Sciences Paleontological Institute, pp.32-51.
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| Klofak, S. M. , 2002, Size Classes in a Devonian Ammonoid from the Middle Devonian Cherry Valley Limestone of New York State, U.S.A., In H. Summesberger, K. Histon and A. Daurer (eds.), Cephalopods--Present and Past, Abhandlungen der Geologischen Bundesanstalt, Band 57, pp. 443-457.
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| Klofak, S. M. , N. H. Landman and R. H. Mapes, 1999, Embryonic Development of Primitive Ammonoids and the Monophyly of the Ammonoidea. In F. Oloriz and F. J. Rodriguez-Tovar (eds.), Advancing Research on Living and Fossil Cephalopods, New York : Plenum Press, pp. 23-45.
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| Landman, N. H., S. M. Klofak and K. B. Sarg, 2003, Variation in Adult Size of Scaphitid Ammonites from the Upper Cretaceous Pierre Shale and Fox Hills Formation, In Harries, Peter J. (ed.), High-Resolution Approaches in Stratigraphic Paleontology, Boston, Kluwer Academic Press, pp.149-194.
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| Landman, N. H., K. Tanabe, R. H. Mapes, S. M. Klofak and J. Whitehill, 1993, Pseudosutures in Paleozoic ammonoids. Lethaia 26: 99-100.
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