Authors Year Title
Gordon 1965 Carboniferous Cephalopods of Arkansas.
Professional Papers, U.S. Geological Survey, 460: 1-322, fig.1-96, pl.1-32; Washington. [imprint 1964].
Manger, Stephen & Meeks 1999 Possible Cephalopod Reproductive Mass Mortality Reflected by Middle Carboniferous Assemblages, Arkansas, Southern United States.
In: Olóriz,F. & Rodríguez-Tovar,F.J.[eds.], Advancing Research on Living and Fossil Cephalopods,345-364, 8 figs., New York.
McCaleb, Quinn & Furnish 1964 The ammonoid family Girtyoceratidae in the Southern Midcontinent.
Circular Oklahoma geological Survey, 67: 1-41, 8 figs., pl.1-4; Norman, Okla.
Meeks, Titus & Manger 1997 Taphonomy and Biostratigraphy of Ammonoid Cephalopods, Fayetteville Shale (Middle Chesterian, Mississippian), northern Arkansas, United States.
Proceedings of the XII International Congress on the Carboniferous and Permian, Krakow 1995, 1, Prace Panstw.Inst.Geol.,157: 311-317, 1 fig., pl.1, Krakow.
Ruzhencev & Bogoslovskaya 1971a Namiurskii etap v evoliutsii ammonodei. Rannenamiurskie ammonoidei.
Trudy Paleontologicheskogo Instituta Akademiya Nauk SSSR, 133: 1-382, fig.1-89, pl.1-40; Moskva.
Saunders, Manger & Gordon 1977 Upper Mississippian and lower and middle Pennsylvanian ammonoid biostratigraphy of Northern Arkansas.
Oklahoma Geolological Survey Guidebook 18: 117-137, fig.1-2, tab.1-2, pl.1-6.