Technical material for the Virtual Silurian Reef was derived, in part, from the following sources:

Alguire, S.L. 1962. Some geologic and economic aspects of Niagaran reefs in eastern Michigan. Michigan Basin Geological Society, Annual Field Conference, 1962, Silurian Rocks of the Southern Lake Michigan Area, p. 30-38.
Chamberlin, T.C. 1877. Geology of eastern Wisconsin, in Geology of Wisconsin, v. 2, Wisconsin Geological Survey, Madison, p. 93-405.
Copper, P. & Brunton, F. 1991. A global review of Silurian reefs. Special Papers in Palaeontology, v. 44, p. 225-259.
Droeste, J.B. & Shaver, R.H. 1983. Atlas of early and middle Paleozoic paleogeography of the southern Great Lakes area. Indiana Geological Survey Special Report 32, 32 p.
Fagerstrom, J.A. 1987. The Evolution of Reef Communities. John Wiley & Sons, New York, 600 p.
Hall, J. 1867. Descriptions of some new fossils from the Niagara Group. New York State Cabinet of Natural History, 2oth Annual Report, p. 308-401.
Jaap, W.C. 1984. The ecology of the south Florida coral reefs: a community profile. U.S. Fish and Wildlife Service, FWS/OBS-82/08, 138 p.
Lowenstam, H.A. 1957. Niagaran reefs of the Great Lakes area. Geological Society of America Memoir 67, p. 215-248.
McGovney, J.E. 1989. Thornton reef, Silurian, northeastern Illinois. Canadian Society of Petroleum Geologists Memoir 13, p. 330-338.
Mikulic, D.G., Briggs, D.E.G. & Kluessendorf, J. 1985. A new exceptionally preserved biota from the Lower Silurian of Wisconsin, U.S.A. Philosophical Transactions of the Royal Society of London, v. B311, p. 75-85.
Mikulic, D.G. & Kluessendorf, J. 1988. Subsurface stratigraphic relationships of the Upper Silurian and Devonian rock of Milwaukee County, Wisconsin. Geoscience Wisconsin, v. 12, p. 1-23.
Murchison, R.I. 1859. Siluria. John Murray, London, 592 p.
Sheehan, P.M. 1985. Reefs are not so different - they follow the evolutionary pattern of level-bottom communities. Geology, v. 14, p. 46-49.
Shrock, R.R. 1939. Wisconsin Silurian bioherms (organic reefs). Geological Society of America Bulletin, v. 50, p. 529-562.
STS Consultants Ltd. 1992. Geological Investigation, Soldier's Home reef, Milwaukee, Wisconsin. Unpublished technical report, 20 p.
Walsh, D.B. & Scotese. C.R. 1995. Plate Tracker Version 1.2: Disk and User's Guide. Earth Science Associates, Inc., Arlington, Texas.
Watkins, R. 1991. Guild structure and tiering in a high-diversity Silurian community, Milwaukee County, Wisconsin. Palaios, v. 6, p. 465-478.
Watkins, R. 1993. The Silurian (Wenlockian) reef fauna of southeastern Wisconsin. Palaios, v. 8, p. 325-338.
Watkins, R. 1996. Skeletal composition of Silurian benthic marine faunas. Palaios, v. 11, p. 550-558.
Watkins, R., Olson, C.D. & Kuglitsch, J.J. 1989. Sedimentologic relations of middle Silurian patch reefs at Grafton, Wisconsin. Geological Society of America Abstracts with Programs, v. 21, p. 51.
Wells, J.W. 1957. Coral reefs. Geological Society of America Memoir 67, p. 609-631.
Ziegler, A.M., Rickards, R.B. & McKerrow, W.S. 1974. Correlation of the Silurian rocks of the British Isles. Geological Society of America Special Paper 154, 154 p.