Taxon
Acutimitoceras (Stockumites) louisianense
Agathiceras ciscoense
Becanites gurleyi
Beyrichoceratoides lunatum (Qualifier: sn)
Branneroceras branneri+*
Cardiella ganti
Choctawites choctawensis*
Choctawites kentuckiensis
Cravenoceras kingi
Cunitoceras? shumardianum
Gaitherites morrowensis*
Gastrioceras adaense
Gastrioceras fittsi
Gastrioceras occidentale
Gastrioceras? compactum (Qualifier: sn)
Glaphyrites excelsus
Glaphyrites illinoisensis
Glaphyrites subcavus (Qualifier: sy)
Glaphyrites welleri
Glaphyrites? kansasensis
Glaphyrites? nolinensis
Goniatites americanus
Goniocyclus blairi+
Gonioloboceras goniolobum+
Gonioloboceras hathawayanum (Qualifier: sn)
Gonioloboceras parrishi
Gonioloboceras welleri
Imitoceras discoidale
Imitoceras indianense
Imitoceras ixion
Imitoceras jessieae
Imitoceras propinquus
Imitoceras? greencastlensis (Qualifier: sn)
Imitoceras? sciotoense
Intoceras
Intoceras osagense
Irinoceras romingeri
Kazakhstania colubrella
Lusitanites subcircularis+
Medlicottia copei
Merocanites houghtoni
Metalegoceras baylorense
Michiganites greenei
Michiganites marshallensis+
Muensteroceras oweni
Muensteroceras parallelum+
Muensteroceras? holmesii (Qualifier: sn)
Muensteroceras? morganense (Qualifier: sn)
Muensteroceras? pygmaeum
Neodimorphoceras (Neodimorphoceras) texanum+*
Neoicoceras elkhornense+
Pachylyroceras hyatti
Pachylyroceras newsomi
Paralegoceras iowense+*
Paralegoceras texanum
Paraschistoceras hildrethi+*
Perrinites hilli*
Phaneroceras compressum+*
Politoceras politum+
Popanoceras walcotti
Prodromites gorbyi+
Prodromites ornatus (Qualifier: sy)
Prodromites praematurus (Qualifier: sy)
Prolecanites monroensis
Pronorites arkansasensis (Qualifier: sy)
Properrinites cumminsi
Protocanites lyoni+*
Pseudopronorites arkansiensis*
Pseudopronorites siebenthali (Qualifier: sy)
Schistoceras fultonense
Schistoceras hyatti (Qualifier: sy)
Schistoceras missouriense+*
Schistoceras? montgomeryense
Shumardites simondsi+
Subkargalites parkeri
Sulcogirtyoceras leviculum (Qualifier: sy)
Sulcogirtyoceras limatum
Syngastrioceras globulosum
Syngastrioceras oblatum*
Winchelloceras allei+
Zadelsdorfia andrewsi
Zadelsdorfia ohioensis
Zadelsdorfia? brownense
unrecognized minimus
unrecognized parvus
unrecognized planorbiforme (Qualifier: sn)
unrecognized sulciferus (Qualifier: sn)