Acanthoclymenia Hyatt in Eastman-Zittel, 1900 † (original description)
Acrioceras Hyatt in Eastman-Zittel, 1900 † (original description)
Alocolytoceras Hyatt in Eastman-Zittel, 1900 † (original description)
Amblycoceras Hyatt in Eastman-Zittel, 1900 † (original description)
Amoeboceras Hyatt in Eastman-Zittel, 1900 † (original description)
Anagymnites Hyatt in Eastman-Zittel, 1900 † (original description)
Anahamulina Hyatt in Eastman-Zittel, 1900 † (original description)
Anahedenstroemia Hyatt in Eastman-Zittel, 1900 † (original description)
Anahoplites Hyatt in Eastman-Zittel, 1900 † (original description)
Analytoceras Hyatt in Eastman-Zittel, 1900 † (original description)
Anascaphites Hyatt in Eastman-Zittel, 1900 † (original description)
Anoploceras Hyatt in Eastman-Zittel, 1900 † (original description)
Anthonyia Eastman in Eastman-Zittel, 1900 † accepted as Anthonya Gabb, 1864 † (original description)
Apheleceras Hyatt in Eastman-Zittel, 1900 † accepted as Aphelaeceras Hyatt, 1884 † (original description)
Aplococeras Hyatt in Eastman-Zittel, 1900 † (original description)
Apsorroceras Hyatt in Eastman-Zittel, 1900 † (original description)
Arctoceras Hyatt in Eastman-Zittel, 1900 † (original description)
Arietes Hyatt in Eastman-Zittel, 1900 † accepted as Arietites Waagen in Benecke, 1869 † (original description)
Aristella Eastman in Eastman-Zittel, 1900 † accepted as Aristerella Ulrich, 1894 † (original description)
Aurigerus Hyatt in Eastman-Zittel, 1900 † (original description)
Bambaganites Hyatt in Eastman-Zittel, 1900 † (original description)
Bostrychoceras Hyatt in Eastman-Zittel, 1900 † (original description)
Brachtrema Eastman in Eastman-Zittel, 1900 † accepted as Brachytrema Morris & Lycett, 1851 † (original description)
Calycoceras Hyatt in Eastman-Zittel, 1900 † (original description)
Chaenopea Eastman in Eastman-Zittel, 1900 † (original description)
Cleonoceras Hyatt in Eastman-Zittel, 1900 † accepted as Cleoniceras Parona & Bonarelli, 1897 † (original description)
Clymenonautilus Hyatt in Eastman-Zittel, 1900 † (original description)
Codoceras Hyatt in Eastman-Zittel, 1900 † (original description)
Erymnoceras Hyatt in Eastman-Zittel, 1900 † (original description)
Eucythara Eastman in Eastman-Zittel, 1900 † accepted as Eucithara Fischer, 1883 (original description)
Fibiella Eastman in Eastman-Zittel, 1900 † accepted as Tibiella Meyer, 1884 † (original description)
Florianites Hyatt in Eastman-Zittel, 1900 † (original description)
Gabbioceras Hyatt in Eastman-Zittel, 1900 † (original description)
Garantiana Hyatt in Eastman-Zittel, 1900 † (original description)
Geyeroceras Hyatt in Eastman-Zittel, 1900 † (original description)
Gigantoceras Hyatt in Eastman-Zittel, 1900 † (original description)
Gonioloboceras Hyatt in Eastman-Zittel, 1900 † (original description)
Hemibaculites Hyatt in Eastman-Zittel, 1900 † (original description)
Hyphantoceras Hyatt in Eastman-Zittel, 1900 † (original description)
Hystatoceras Hyatt in Eastman-Zittel, 1900 † (original description)
Lopholobites Hyatt in Eastman-Zittel, 1900 † (original description)
Lyticoceras Hyatt in Eastman-Zittel, 1900 † (original description)
Meneghiniceras Hyatt in Eastman-Zittel, 1900 † (original description)
Metacanthoplites Hyatt in Eastman-Zittel, 1900 † (original description)
Paradoceras Hyatt in Eastman-Zittel, 1900 † accepted as Parodiceras Hyatt, 1884 † (original description)
Patrocardium Dall in Eastman-Zittel, 1900 † accepted as Patrocardia Fischer, 1887 † (original description)
Pergamidea Eastman in Eastman-Zittel, 1900 † accepted as Pergamidia Bittner, 1891 † (original description)
Phlycticeras Hyatt in Eastman-Zittel, 1900 † (original description)
Phricodoceras Hyatt in Eastman-Zittel, 1900 † (original description)
Physodoceras Hyatt in Eastman-Zittel, 1900 † (original description)
Pironaia Eastman in Eastman-Zittel, 1900 † (original description)
Pleurolytoceras Hyatt in Eastman-Zittel, 1900 † (original description)
Pleuropachydiscus Hyatt in Eastman-Zittel, 1900 † (original description)
Plococeras Hyatt in Eastman-Zittel, 1900 † (original description)
Preconia Eastman in Eastman-Zittel, 1900 † accepted as Praeconia Stoliczka, 1871 † (original description)
Projovellania Hyatt in Eastman-Zittel, 1900 † (original description)
Prolucina Dall in Eastman-Zittel, 1900 † (original description)
Protengonoceras Hyatt in Eastman-Zittel, 1900 † (original description)
Protetragonites Hyatt in Eastman-Zittel, 1900 † (original description)
Protobactrites Hyatt in Eastman-Zittel, 1900 † (original description)
Protophiceras Hyatt in Eastman-Zittel, 1900 † (original description)
Protophragmoceras Hyatt in Eastman-Zittel, 1900 † (original description)
Pseudodanubites Hyatt in Eastman-Zittel, 1900 † (original description)
Pseudodinarites Hyatt in Eastman-Zittel, 1900 † (original description)
Pseudoharpoceras Hyatt in Eastman-Zittel, 1900 † accepted as Pseudharpoceras Waagen, 1893 † (original description)
Psilotissotia Hyatt in Eastman-Zittel, 1900 † (original description)
Quenstedtoceras Hyatt in Eastman-Zittel, 1900 † (original description)
Remeleoceras Hyatt in Eastman-Zittel, 1900 † accepted as Remeleceras Hyatt, 1894 † (original description)
Schistophylloceras Hyatt in Eastman-Zittel, 1900 † (original description)
Siemiradzkia Hyatt in Eastman-Zittel, 1900 † (original description)
Sigaloceras Hyatt in Eastman-Zittel, 1900 † (original description)
Sowerbiceras Hyatt in Eastman-Zittel, 1900 † (original description)
Staliola Eastman in Eastman-Zittel, 1900 † (original description)
Taurinia Eastman in Eastman-Zittel, 1900 † accepted as Taurasia Bellardi, 1882 (original description)
Tonoceras Hyatt in Eastman-Zittel, 1900 † (original description)
Torneutoceras Hyatt in Eastman-Zittel, 1900 † (original description)
Ussurites Hyatt in Eastman-Zittel, 1900 † (original description)
Wyomingites Hyatt in Eastman-Zittel, 1900 † (original description)