	Authors	Year	Title
	Clardy	1962	Goniatite cephalopod faunas from the Hale Formation. Compass 39 (3): 103-109, 1fig., 1tab., pl.1-2;
	Gordon	1965	Carboniferous Cephalopods of Arkansas. Professional Papers, U.S. Geological Survey, 460: 1-322, fig.1-96, pl.1-32; Washington. [imprint 1964].
	Gordon	1969	Early Pennsylvanian Ammonoids from Southern Nevada. Professional Paper, U.S. Geological Survey, 613-C, 1-13, 12 text-fig., Washington.
	Honderich	1962	A goniatite cephalopod fauna from the Brentwood Member of the Bloyd Formation. Research Reports, National Science Foundation Undergraduate Research Participation Program, University of Arkansas,p.65-73,1 pl.,1 tabl.,Fayetteville.
	Kant	1975	Biometrische Untersuchungen an Ammonoideen-Gehäusen. Paläontologische Zeitschrift: 203-220, 19 fig., Stuttgart.
	Kant	1976	Variantenbildung bei Syngastrioceras oblatum (MILLER & MOORE), eine bautechnische Analyse. Stuttgarter Beiträge zur Naturkunde, (B) 20: 1-8, 5 fig., Stuttgart.
	Kant	1977	Die Integrationskonstante im allometrischen Wachstum, eine konstruktionsmorphologische Analyse unter besonderer Berücksichtigung des Ammonoideen-Gehäuses. Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen, 154 (3): 263-289, 13 fig., 2 tab., Stuttgart.
	McCaleb	1968	Lower Pennsylvanian Ammonoids from the Bloyd Formation of Arkansas and Oklahoma. Special Paper of the geological Society of America, 96: 1-123, fig.1-27, pl.1-12; Boulder,Colorado.
	Miller & Moore	1938	Cephalopods from the Carboniferous Morrow Group of Northern Arkansas and Oklahoma. Journal of Paleontology, 12 (4): 341-374, fig.1-4, pl.43,44; Tulsa, Oklahoma.
	Miller & Owen	1944	The cephalopod fauna of the Pennsylvanian Union Valley Formation of Oklahoma. Journal of Paleontology, 18 (5): 417-428,fig.1-4, pl.63-68; Tulsa, Okla.
	Nassichuk	1975	Carboniferous ammonoids and stratigraphy in the Canadian Arctic Archipelago. Bulletin of the Geological Survey of Canada, 237: 1-240, fig.1-57, tab.1-33, pl.1-18; Ottawa.
	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.
	Smith	1903	The Carboniferous Ammonoids of America. Monography, U.S. geological Survey, 42: 1-211, pl.1-29; Washington.
	Wang	1981	Carboniferous ammonoids from Eastern Xinjiang.[In Chinese, with English summary]. Acta Palaeontologica Sinica, 20 (5): 468-481, fig.1-12, pl.1,2; Beijing.