Buzas, M. A., Koch, C. F., Culver, S. J., and Sohl, N. F.. 1982. On the distribution of species occurrence. Paleobiology 8: 142–150.
Fisher, R. A., Corbet, A. S., and Williams, C. B.. 1943. The relation between the number of species and the number of individuals in a random sample of an animal population. Journal of Animal Ecology 12: 42–58.
Jablonski, D. 1980. Apparent versus real biotic effects of transgressions and regressions. Paleobiology 6: 397–407.
Kauffman, E. G. 1975. Dispersal and biostratigraphic potential of Cretaceous benthonic Bivalvia in the Western Interior. Geological Association of Canada Special Paper 13: 163–194.
Kauffman, E. G. 1984. The fabric of Cretaceous marine extinctions. Pp. 151–246. In Berggren, W. A. and Van Couvering, J. A. (eds.), Catastrophies and Earth History. Princeton University Press; Princeton.
Koch, C. F. 1977. Evolutionary and ecological patterns of Upper Cenomanian (Cretaceous) mollusc distribution in the Western Interior of North America. Unpublished Ph.D. Dissertation, George Washington University. 72 pp.
Koch, C. F. 1987. Prediction of sample size effects on the measured temporal and geographic distribution patterns of species. Paleobiology 13: 100–107.
Koch, C. F. and Sohl, N. F.. 1983a. Preservational effects in paleoecological studies: Cretaceous mollusc examples. Paleobiology 9: 26–34.
Koch, C. F. and Sohl, N. F.. 1983b. Effects of substrate on taxon occurrence frequency: Upper Cretaceous molluscs. Geological Society of America Abstracts 15: 616.
Koch, C. F. and Sohl, N. F.. 1986. Biogeographic range of the more abundant molluscan species from Uppermost Cretaceous strata: U.S. Coastal Plain. Geological Society of America Abstracts 18: 660.
Koch, C. F. and Sohl, N. F.. In press. Distributional patterns of Maastrichtian mollusc species in the United States Coastal Province. Proceedings of the IX Congresso Brasileiro de Paleontologica, Fortaleza, Brazil, September 1985.
Myers, R. L. 1968. Biostratigraphy of the Cardenas Formation (Upper Cretaceous) San Luis Potosi, Mexico. Universidad Nacional Autonma de Mexico, Instituto de Geologica, Paleontologia Mexicana 24: 1–89.
Preston, F. W. 1962. The canonical distribution of commonness and rarity (two parts). Ecology 43: 185–215, 410–432.
Rohatgi, V. K. 1976. An Introduction to Probability and Mathematical Statistics. J. Wiley; New York. 684 pp.
Signor, P. W. and Lipps, J. H.. 1982. Sampling bias, gradual extinction patterns and catastrophies in the fossil record. Geological Society of America Special Paper 19: 291–296.
Sohl, N. F. 1977. Utility of gastropods in biostratigraphy. Pp. 519–539. In Kauffman, E. G. and Hazel, J. E. (eds.), Concepts and Methods of Biostratigraphy. Dowden, Hutchinson and Ross, Incorporated; Stroudsburg, Pennsylvania.
Sohl, N. F. and Koch, C. F.. 1983. Upper Cretaceous (Maestrichtian) Mollusca from the Haustator bilira Assemblage Zone in the East Gulf Coastal Plain. U.S. Geological Survey Open File Report 83–451. 330 pp.
Sohl, N. F. and Koch, C. F.. 1984. Upper Cretaceous (Maestrichtian) Larger Invertebrates from the Haustator bilira Assemblage Zone in the West Gulf Coastal Plain. U.S. Geological Survey Open File Report 84–687. 271 pp.
Sohl, N. F. and Koch, C. F.. 1986. Molluscan biostratigraphy and biofacies of the Haustator bilira Assemblage Zone (Maestrichtian) of the East Gulf Coastal Plain. Pp. 45–56. In Reinhardt, J. (ed.), Stratigraphy and Sedimentology of Continental Near Shore and Marine Cretaceous Sediments of the Eastern Gulf Coastal Plain, Field Trip No. 3. Society of Economic Paleontologists and Mineralogists and American Association of Petroleum Geologists Annual Meeting, June 18–20, 1986.
Sohl, N. F. and Koch, C. F.. 1987. Upper Cretaceous (Maestrichtian) Larger Invertebrates from the Haustator bilira Assemblage Zone in the Atlantic Coastal Plain with Further Data from the East Gulf. U.S. Geological Survey Open File Report 87–194. 172 pp.
Wollenben, J. A. 1977. Paleontology of the Difunta Group (Upper Cretaceous-Tertiary) in Northern Mexico. Journal of Paleontology 51: 373–398.