Authors Year Title
Davis, Furnish & Glenister 1969 Mature Modification and Dimorphism in late Paleozoic Ammonoids.
In: Westermann,G.E.G:Sexual Dimorphism in Fossil Metazoa and Taxonomic Implications,Intern.Union Geol.Sci., A (1):101-110, 2 figs., pl.2-5, Stuttgart.
Davis 1972 Mature modifications and dimorphism in selected Late Paleozoic ammonoids.
Bulletins of American Paleontology, 62 (272): 27-130, pls.3-21, Ithaca, NY.
Davis, Landman & Dommergues 1996 Mature Modifications and Dimorphism in Ammonoid Cephalopods. [Davis,R.A., Landman, N.H., Dommergues, D.M., Marchand, D. & Bucher, H.]
In: Ammonoid Paleobiology, N.H.Landman, K.Tanabe & R.A.Davis [eds.], 463-539, 15 figs, 1 tabl., New York (Plenum).
Davis & Mapes 1996 Fossils of Ohio. Phylum Mollusca, Class Cephalopoda.
Ohio Division of Geological Survey, Bulletin 70, Fossils of Ohio, Chapter 14: 166-195, Fig.14-1 - Fig.14-10, Columbus, OH.
Davis, Mapes & Klofak 1999 Epizoa on externally shelled cephalopods.
In: Rozanov,A.Yu. & Shevyrev,A.A. (eds.), Fossil cephalopods: Recent advances in their study, Ross.Akad.Nauk, Paleont.Inst.: 32-51, 5 pls., Moskva.
Mapes & Davis 1996 Color Patterns in Ammonoids.
In: Ammonoid Paleobiology, N.H.Landman, K.Tanabe & R.A.Davis [eds.], 104-127, 4 figs., 3 tabls., New York (Plenum).