Authors Year Title
Kullmann & Wiedmann 1970 Significance of sutures in phylogeny of Ammonoidea.
University of Kansas, Paleontological Contributions, 47: 1-32, fig.1-16; Lawrence, Kansas.
Kullmann & Wiedmann 1982 Bedeutung der Rekapitulationsentwicklung in der Paläontologie.
Verhandlungen naturwiss. Verein Hamburg, N.F. 25:71-92, fig.1-11; Hamburg.
Wiedmann & Kullmann 1981 Ammonoid sutures in ontogeny and phylogeny.
In: M.R.House & J.R.Senior, eds., The Ammonoidea. The evolution ..., The Systematics Association Special volume No.18: 215-255, 22 text-figs., London.
Wiedmann & Kullmann 1996 Crises in Ammonoid Evolution.
In: Ammonoid Paleobiology, N.H.Landman, K.Tanabe & R.A.Davis [eds.], 795-813, 5 figs, New York (Plenum).