Albertoceras gracillimum Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Albertoceras minimum Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Albertoceras staufferi Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Avaoceras Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Avaoceras elongatum Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Avaoceras longidomum Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Avaoceras magnisiphonatum Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Avaoceras wellsense Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Bassleroceras acinacellum (Whitfield, 1886) † (basis of record)
Bassleroceras alethes (Billings, 1865) † (basis of record)
Bassleroceras dalevillense Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Bassleroceras kayi Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Bassleroceras lasallense Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Bassleroceras tenuiculum Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Bassleroceratidae Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Bathmoceras tennesseense Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Buttsoceras adamsi (Butts, 1926) † (basis of record)
Buttsoceras odenvillense Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Buttsoceras vandiverense Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Cameroceras Conrad, 1842 † (additional source)
Campbelloceras hyatti Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Catoraphiceras cushingi Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Catoraphiceras osagense Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Catoraphiceras resseri Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Clelandoceras Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Clelandoceras breve Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Clelandoceras elongatum Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Clitendoceras mesleri Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Clitendoceras montrealense (Billings, 1859) † (basis of record)
Copiceras Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Copiceras erectum Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Cotteroceras buttsi Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Cotteroceras cullisoni Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Cotteroceras gregeri Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Cyptendoceras bridgei Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Cyptendoceras campbelli Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Cyptendoceras depressum Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Cyptendoceras genevievense Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Cyptendoceras mesleri Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Cyptendoceras veterator (Billings, 1865) † (original description)
Cyptendoceras wellsense Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Cyptendoceras whitfieldi Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Cyptendocerina Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Diaphoroceras Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Diaphoroceras avaense Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Diaphoroceras belli Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Diaphoroceras buffaloense Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Dresseroceras Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Dresseroceras corrugatum Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Dyscritoceras dictys (Billings, 1865) † (basis of record)
Dyscritoceras metellus (Billings, 1865) † (basis of record)
Dyscritoceras oxfordense Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Ectocycloceras Ulrich & Foerste, 1936 † (basis of record)
Ectocycloceras cataline (Billings, 1865) † (basis of record)
Ellesmeroceras higdonense Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Ellesmeroceras hotchkissi Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Ellesmeroceras luthei Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Ellesmeroceras thomasi Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Endoceras baylorense Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Endoceras calvini Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Endoceras champlainense Ruedemann, 1906 † (basis of record)
Endoceras knighti Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Endoceras lamottense Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Endoceras lawrencense Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Endoceras logani Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Endoceras philipsburgense Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Endoceras richardsoni Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Endoceras sansabaense Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Endoceras trundlesense Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Endoceras wappingerense Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Endoceras warthini Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Endoceras yellvillense Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Endocycloceras Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Endocycloceras legorense Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Endocycloceras perannulatum Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Endocycloceras subcurvatum Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Eothinoceras Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Eothinoceras americanum Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Eothinoceratidae Ulrich, Foerster, A. K. Miller & Unklesbay, 1944 † (original description)
Lawrenceoceras Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Lawrenceoceras collinsi Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Leptocyrtoceras Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Leptocyrtoceras curvatum Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Leptocyrtoceras powellense Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Leptocyrtoceras virginianum Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Manitouoceras Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Manitouoceras gracile Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Manitouoceras major Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Mcqueenoceras franklinense Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Mcqueenoceras newmanni Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Monogonoceras Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Monogonoceras alabamense Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Monogonoceras magnisiphonatum Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Monogonoceras subrectum Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Ogygoceras Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Ogygoceras gracile Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Oxfordoceras Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Oxfordoceras atticus (Billings, 1865) † (basis of record)
Oxfordoceras billingsi Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)
Pachendoceras confertum Ulrich, Foerste, A. K. Miller & Unklesbay, 1944 † (original description)