Authors Year Title
Bogoslovskaya & Shul'ga 1992 Pervye nakhodki ammonoidei roda Eumorphoceras v karbone L'vovsko-Volynskogo basseina.
Doklady Akademii Nauk Ukrainy, 1992 (11): 92-96, 2 fig., Kiev.
Elias 1956 Upper Mississippian and Lower Pennsylvanian Formations of south-central Oklahoma. In: Petroleum geology of southern Oklahoma. Volume 1.
American Association of  Petroleum Geologists, 1956: 56-134, 2 fig., 4 tab., 6 pl.; Tulsa, Okla.
Girty 1909 The fauna of the Caney Shale of Oklahoma.
Bulletin, U.S. Geological Survey, 377: 1-106, pl.1-13; Washington.
Gordon 1964 California Carboniferous Cephalopods.
Geological Survey Professional Paper 483-A: A1-A27, 12 figs., pl.1-4, Washington.
Gordon 1965 Carboniferous Cephalopods of Arkansas.
Professional Papers, U.S. Geological Survey, 460: 1-322, fig.1-96, pl.1-32; Washington. [imprint 1964].
House 1985 Class Cephalopoda.
In: Murray,J.W. (Ed.): Atlas of invertebrate macrofossils.- 114-152, fig.6.7.1-6.7.25, pl.6.7.1-6.7.127; New York.
Kullmann 1962 Die Goniatiten der Namur-Stufe (Oberkarbon) im Kantabrischen Gebirge, Nordspanien.
Abhandlungen der Akademie der Wissenschaften und der Literatur in Mainz, mathematisch-naturwissensch.Klasse,1962 (6):1-119 [259-377], 17 fig.,7 pl.; (Steiner) Wiesbaden.
Kullmann & Scheuch 1970 Wachstums-Änderungen in der Ontogenese paläozoischer Ammonoideen.
Lethaia, 3: 397-412, fig.1-8; Oslo.
Kullmann & Nikolaeva 1999 Ammonoid turnover at the Mid-Carboniferous boundary and the biostratigraphy of the early Upper Carboniferous.
In: Rozanov,A.Yu. & Shevyrev,A.A. (eds.), Fossil cephalopods: Recent advances in their study, Ross.Akad.Nauk,Paleont.Inst.: 169-194, 21 figs., Moskva
Lemosquet, Conrad & Manger 1985 Ammononoids. [In: M.Diaz, R.H.Wagner, C.F. Winkler Prins & L.F.Granados, eds., The Carboniferous of the World, 2.]
International Union of Geological Sciences Publication, 20: 367-372, pls.7-10, Madrid.
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.
Moore 1946 The Carboniferous goniatite genera Girtyoceras and Eumorphoceras.
Proceedings of the Yorkshire Geological Society, 25: 387-445, 31 figs., pl.22-27; Wakefield.
Pareyn 1961 Les Massifs Carbonifères du Sahara Sud-Oranais. Tome II. Paléontologie stratigraphique.
Publications Centre Rech. Sahariennes, Ser. Géologie, 1: 1-244, fig.1-27, pl.1-28; Paris.
Plummer & Scott 1937 Upper Paleozoic ammonites in Texas.
The geology of Texas, vol.3 pt.1, Bull. Texas. Univ., 3701: 1-516, fig.1-88, pl.1-41; Austin, Texas.
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.
Schmidt 1929 Tierische Leitfossilien des Karbon.
Gürich,G.: Leitfossilien, 6. Lief.: 1-107, pl.1-23; Berlin (Borntraeger).
Titus 2000 Late Mississippian (Arnsbergian Stage-E2 chronozone) ammonoid paleontology and biostratigraphy of the Antler foreland basin, California, Nevada, Utah.
Bulletin 131 Utah Geological Survey, 1-108, 51 text-figs., 17 tabls., 16 pls., Salt Lake City.
Youngquist 1949a The cephalopod fauna of the White Pine shale of Nevada.
Journal of Paleontology, 23: 276-305, fig.1-3, pl.59-64; Tulsa, Okla.