Authors Year Title
Landman, Polizzotto & Mapes 2006 Cameral membranses in prolecantid and goniatitid ammonoids from the Permian Arcturus Formation, Nevada, USA. [N.H. Landman, K. Polizzotto, R.J. Mapes & K. Tanabe].
Lethaia, 39: 365-379, 13 fig.
Polizzotto, Landman & Mapes 2007 Cameral Membranes in Carboniferous and Permian Goniatites: Description and Relationship to Pseudosutures.
In: N.H.Landman, R.A.Davis, R.H.Mapes, eds.: Cephalopods Present and Past: New Insights and Fresh Perspectives, 181-204, 15 fig. (Springer).