(vergleiche auch Andere Quellen)

Baadsgaard, H.; Lerbekmo, J.F.; Wijbrans, J.R., 1993. Multimethod radiometric age for a bentonite near the top of the Baculites reesidei Zone of southwestern Saskatchewan (Campanian-Maastrichtian stage boundary?). Canadian Journal of Earth Sciences, v.30, p.769-775.

Baadsgaard, H. and Lerbekmo, J.F., 1988. A radiometric age for the Cretaceous-Tertiary boundary based on K-Ar, Rb-Sr, and U-Pb ages of bentonites from Alberta, Saskatchewan, and Montana. Canadian Journal of Earth Sciences, v.25, p.1088-1097.

Eberth, D.A. and Braman, D., 1990. Stratigraphy, sedimentology, and vertebrate paleontology of the Judith River Formation (Campanian) near Muddy Lake, west-central Saskatchewan. Bulletin of Canadian Petroleum Geology, v.38, no.4, p.387-406.

Goodwin, M.B. and Deino, A.L., 1989. The first radiometric ages from the Judith River Formation (Upper Cretaceous), Hill County, Montana. Canadian Journal of Earth Sciences, v.26, p.1384-1391.

Gradstein, F. M.; Agterberg, F.P.; Ogg, J.G.; Hardenbol, J.; van Veen, P.; Thierry, J. and Zehui Huang., 1995. A Triassic, Jurassic and Cretaceous time scale.  IN: Bergren, W. A. ; Kent, D.V.; Aubry, M-P. and Hardenbol, J. (eds.), Geochronology, Time Scales, and Global Stratigraphic Correlation. Society of Economic Paleontologists and Mineralogists, Special Publication No. 54, p.95-126.

Harland, W.B., Cox, A.V.; Llewellyn, P.G.; Pickton, C.A.G.; Smith, A.G.; and Walters, R., 1982. A Geologic Time Scale: 1982 edition. Cambridge University Press: Cambridge, 131p.

Harland, W.B.; Armstrong, R.L.; Cox, A.V.; Craig, L.E.; Smith, A.G.; Smith, D.G., 1990. A Geologic Time Scale, 1989 edition. Cambridge University Press: Cambridge, p.1-263. ISBN 0-521-38765-5

Harper, C.W., Jr., 1980.  Relative age inference in paleontology.  Lethaia, v.13, p.239-248.

Lubenow, M.L., 1992.  Bones of Contention: A Creationist Assessment of Human Fossils.   Baker Book House: Grand Rapids.

Obradovich, J.D., 1993. A Cretaceous time scale. IN: Caldwell, W.G.E. and Kauffman, E.G. (eds.). Evolution of the Western Interior Basin. Geological Association of Canada, Special Paper 39, p.379-396.

Palmer, Allison R. (compiler), 1983.  The Decade of North American Geology 1983 Geologic Time Scale.  Geology, v.11, p.503-504.  [Also available on-line from the Geological Society of America web site at ]

Rastall, R.H., 1956.  Geology.  Encyclopaedia Britannica 10, p.168.  Encyclopaedia Britannica, Inc.: Chicago.  [As cited in Harper (1980).]

Rogers, R.R.; Swisher, C.C. III, Horner, J.R., 1993. 40Ar/39Ar age and correlation of the nonmarine Two Medicine Formation (Upper Cretaceous), northwestern Montana, U.S.A. Canadian Journal of Earth Sciences, v.30, 1066-1075.
Woodmorappe, J. (pseudonym), 1979.  Radiometric Geochronology Reappraised.  Creation Research Society Quarterly, v.16, p.102-129. [Also available in the book "Studies in Flood Geology", published by the Institute for Creation Research.]