Cyclostomiceras Hyatt in Eastman-Zittel, 1900 † (original description)
Cyrtorizoceras Hyatt in Eastman-Zittel, 1900 † (original description)
Cyrtosiceras Hyatt in Eastman-Zittel, 1900 † (original description)
Diadochoceras Hyatt in Eastman-Zittel, 1900 † (original description)
Diaplococeras Hyatt in Eastman-Zittel, 1900 † (original description)
Diodoceras Hyatt in Eastman-Zittel, 1900 † (original description)
Diphragmoceras Hyatt in Eastman-Zittel, 1900 † (original description)
Diplacomoceras Hyatt in Eastman-Zittel, 1900 † (original description)
Diplomoceras Hyatt in Eastman-Zittel, 1900 † (original description)
Dipoloceras Hyatt in Eastman-Zittel, 1900 † (original description)
Dirrymoceras Hyatt in Eastman-Zittel, 1900 † (original description)
Discophyllites Hyatt in Eastman-Zittel, 1900 † (original description)
Distichioceras Hyatt in Eastman-Zittel, 1900 † accepted as Distichoceras Munier-Chalmas, 1892 † (original description)
Distoloceras Hyatt in Eastman-Zittel, 1900 † (original description)
Doricranites Hyatt in Eastman-Zittel, 1900 † accepted as Dorikranites Hyatt in Whiteaves, 1889 † (original description)
Koninckoceras Hyatt in Eastman-Zittel, 1900 † (original description)
Liropteria Eastman in Eastman-Zittel, 1900 † (original description)
Matthewia Eastman in Eastman-Zittel, 1900 † accepted as Matthevia Walcott, 1885 † (original description)
Mixosiphonoceras Hyatt in Eastman-Zittel, 1900 † (original description)
Noetlingites Hyatt in Eastman-Zittel, 1900 † (original description)
Olenikites Hyatt in Eastman-Zittel, 1900 † (original description)
Ostlingoceras Hyatt in Eastman-Zittel, 1900 † (original description)
Oxybeloceras Hyatt in Eastman-Zittel, 1900 † (original description)
Palearca Eastman in Eastman-Zittel, 1900 † (original description)
Paleocardia Eastman in Eastman-Zittel, 1900 † accepted as Palaeocardia Hall, 1867 † (original description)
Paraceratites Hyatt in Eastman-Zittel, 1900 † (original description)
Paractinoceras Hyatt in Eastman-Zittel, 1900 † (original description)
Paragymnites Hyatt in Eastman-Zittel, 1900 † (original description)
Paralenticeras Hyatt, 1900 † (original description)
Parapachydiscus Hyatt in Eastman-Zittel, 1900 † (original description)
Parapsiloceras Hyatt in Eastman-Zittel, 1900 † (original description)
Parastephanites Hyatt in Eastman-Zittel, 1900 † (original description)
Paratornoceras Hyatt in Eastman-Zittel, 1900 † (original description)
Platylenticeras Hyatt in Eastman-Zittel, 1900 † (original description)
Rhaetites Hyatt in Eastman-Zittel, 1900 † (original description)
Rhineceras Hyatt in Eastman-Zittel, 1900 † accepted as Rineceras Hyatt, 1893 † (original description)
Rizoceras Hyatt in Eastman-Zittel, 1900 † (original description)
Ryticeras Hyatt in Eastman-Zittel, 1900 † (original description)
Tragophylloceras Hyatt in Eastman-Zittel, 1900 † (original description)