Angulotreta Palmer, 1954 † (original description)
Apsotreta Palmer, 1954 † (original description)
Arcuolimbus Palmer, 1955 † (original description)
Bekhmeia Hudson, 1954 † accepted as Burgundia Dehorne, 1916 † (original description)
Blandicephalus Palmer, 1955 † (original description)
Borthaspidella Rasetti, 1954 † (original description)
Campylocynodon Chaffee, 1954 † accepted as Parictis Scott, 1893 † (original description)
Cryptoryctes Reed, 1954 † (original description)
Delepinoceras Miller & Furnish, 1954 † (original description)
Delépinoceras Miller & Furnish, 1954 † accepted as Delepinoceras Miller & Furnish, 1954 † (original description)
Diogmopteron Hill, 1954 † (original description)
Dytremacephalus Palmer, 1955 † (original description)
Gunnellodus Wilimovsky, 1954 † (original description)
Jimbacrinus Teichert, 1954 † (original description)
Labiostria Palmer, 1955 † (original description)
Leiobienvillia Rasetti, 1954 † (original description)
Nasocephalus Wilson, 1954 † (original description)
Neolaganum Durham, 1954 † (original description)
Neorumphia Durham, 1954 † accepted as Wythella Durham, 1954 † (original description)
Oncotechmonus Kesling, 1954 † (original description)
Opisthotreta Palmer, 1954 † (original description)
Orthoretiolites Whittington, 1954 † (original description)
Palaeosynapta Weiss, 1954 † (original description)
Paraboultonia Skinner & Wilde, 1954 † accepted as Lantschichites Tumanskaya, 1953 † (original description)
Pareuloma Rasetti, 1954 † (original description)
Procytheridea Peterson, 1954 † (original description)
Protopresbynileus Hintze, 1954 † (original description)
Pterygocythere Hill, 1954 † (original description)
Sanchezella Durham, 1954 † (original description)
Sphenospira Cooper, 1954 † (original description)
Stenzelia Macneil, 1954 † (original description)
Thuroholia Gutschick, 1954 † (original description)
Uddenoceras Miller & Furnish, 1954 † (original description)
Ventricolaria Keen, 1954 accepted as Globivenus Coen, 1934 (original description)
Weisbordella Durham, 1954 † (original description)
Wilbertopora Cheetham, 1954 † (original description)
Wythella Durham, 1954 † (original description)