Authors	Year	Title
Glenister & Furnish	1988	Terminal Progenesis in Late Paleozoic Ammonoid Families. In: Wiedmann, J. & Kullmann, J. (Eds.), Cephalopods - Present and Past: 51-66, fig.1-3; Stuttgart.
Miller & Furnish	1939	The Late Paleozoic Ammonoid Families Adrianitidae and Agathiceratidae. Paläontologische Zeitschrift, 21: 297-303, fig.1-2; Stuttgart.
Miller & Furnish	1940c	Permian ammonoids of the Guadalupe Mountain Region and adjacent areas. Special Papers of the Geological Society of America, 26: 1-242, fig.1-59, pl.1-44; Baltimore.