Driese, S. G., Foreman, J. L. 1991. Traces and related chemical changes in a Late Ordovician paleosol, Glossifungites ichnofacies, southern Appalachians, USA. Ichnos, 1:207-219.
Droser, M. L., and Bottjer, D. J. 1986. A semiquantitative field classification of ichnofabric. Journal of Sedimentary Petrology, 56:558-559.
Droser, M. L., and Bottjer, D. J. 1988. Trends and extent in bioturbation in Cambrian carbonate marine environments, western United States. Geology, 16:223-236.
Droser, M. L., and Bottjer, D. J. 1989a. Ordovician increase in extent and depth of bioturbation: Implications for understanding early Paleozoic ecospace utilization. Geology, 17:850-852.
Droser, M. L., and Bottjer, D. J. 1989b. Ichnofabric of sandstones deposited in high-energy nearshore environments: measurement and utilization. Palaios, 4:598-604.
Ekdale, A. A. 1985. Paleoecology of the marine benthos: Palaeogeography, Palaeoclimatology, Palaeoecology, 50:63-81.
Ekdale, A. A. 1991. Editorial: "Ichno" this and "ichno" that. Palaios, 6:198.
Ekdale, A. A., and Bromley, R. G. 1983. Trace fossils and ichnofabric in the Kj¿lby Gaard Marl, uppermost Cretaceous, Denmark. Bulletin of the Geological Society of Denmark, 31:107-119.
Ekdale, A. A., and Bromley, R. G. 1984. Comparative ichnology of shelf-sea and deep-sea chalk. Journal of Paleontology, 58:322-332.
Ekdale, A. A., and Lewis, D. L. 1991. The New Zealand Zoophycos revisited: Ichnos, 1:183-194.
Ekdale, A. A., Bromley, R. G., and Pemberton, S. G. 1984. Ichnology: Trace Fossils in Sedimentology and Stratigraphy. Society of Economic Paleontologists and Mineralogists Short Course No. 15, 317 p.
Ekdale, A. A., Muller, L. N., and Novak, M. T. 1984. Quantitative ichnology of modern pelagic deposits in the abyssal Atlantic. Palaeogeography, Palaeoclimatology, Palaeoecology, 45:189-223.
Frey, R. W. 1973. Concepts in the study of biogenic structures. Journal of Sedimentary Petrology, 43:308-311.
Frey, R. W. 1990. Trace fossils and hummocky cross-stratification, Upper Cretaceous of Utah. Palaios, 5:203-218.
Frey, R. W., and Bromley, R. G. 1985. Ichnology of American chalks: the Selma Group (Upper Cretaceous), western Alabama: Canadian Journal of Earth Sciences, 22:801-828.
Frey, R. W., and Chowns, T. M. 1972. Trace fossils from the Ringgold road cut (Ordovician and Silurian), Georgia. In Chowns, T. M. (ed.), Sedimentary Environments in the Paleozoic rocks of Northwest Georgia. Georgia Geologic Survey, Guidebook 11:25-55.
Frey, R. W., and Goldring, R. 1992. Marine event beds and recolonization surfaces as revealed by trace fossil analysis: Geological Magazine, 129:325-335.
Frey, R. W., and Pemberton, S. G. 1985. Biogenic structures in outcrops and cores: I: Approaches to ichnology. Bulletin of Canadian Petroleum Geologists, 33:72-115.
Frey, R. W., and Pemberton, S. G. 1987. The Psilonichnus ichnocoenose, and its relationship to adjacent marine and nonmarine ichnocoenoses along the Georgia coast. Bulletin of Canadian Petroleum Geology, 35:333-357.
Frey, R. W., and Pemberton, S. G. 1990. Editorial: The dawning of Ichnos. Ichnos, 1:1.
Frey, R. W., and Pemberton, S. G., 1984, Trace fossil facies models, In Walker, R. G. (ed.), Facies Models, 2nd Ed., Gesocience Canada, p. 189-207.
Frey, R. W., and Seilacher, A. 1980. Uniformity in marine invertebrate ichnology. Lethaia, 13:183-207.
Frey, R. W., and Wheatcroft, R. A. 1989. Organism-substrate relations and their impact on sedimentary petrology. Journal of Geological Education, 37:261-279.
Frey, R. W., Howard, J. D., and Dorjes, J. 1989. Coastal sediments and patterns of bioturbation, eastern Buzzards Bay, Massachusetts. Journal of Sedimentary Petrology, 59:1022-1035.
Frey, R. W., Howard, J. D., and Han, S. J. 1989. Sediments and sedimentary sequences in a modern macrotidal flat, Inchon, Korea. Journal of Sedimentary Petrology, 59:28-44.
Frey, R. W., Howard, J. D., and Hong, J. S. 1987. Prevalent lebensspuren on a modern macrotidal flat, Inchon, Korea: ethological and environmental significance. Palaios, 2:571-593.
Frey, R. W., Pemberton, S. G., and Fagerstrom, J. A. 1984. Morphological, ethological, and envrionmental significance of the ichnogenera Scoyenia and Ancorichnus. Journal of Paleontology, 58:511-528.
Frey, R. W., Pemberton, S. G., and Saunders, T. D. A. 1990. Ichnofacies and bathymetry: a passive relationship. Journal of Paleontology, 64:155-158.
Frey, R. W., Voorhies, M. R., and Howard, J. D. 1975. Estuaries of the Georgia coast, U.S.A.: sedimentology and biology. VII. Fossil and recent skeletal remains in Georgia estuaries. Senckenbergiana Maritima, 7:257-295.
Frey, R.W., and Pemberton, S. G. 1990b. Bioturbate texture or ichnofabric? Palaios, 5:285-386.
Fu, S., and Werner, F. 1994. Distribution and composition of biogenic structures on the Iceland-Faeroe Ridge: relation to different environments: Palaios, 9:92-101.