Aepycamelus Macdonald, 1956 † (original description)
Albertechinus Stearn, 1956 † (original description)
Amblygiolepidus David, 1956 † (original description)
Anguloceras Unklesbay & Young, 1956 † (original description)
Atopotarus Downs, 1956 † (original description)
Bristolia Harrington, 1956 † (original description)
Calilepidus David, 1956 † (original description)
Cardiarina Cooper, 1956 † (original description)
Chepuloceras Unklesbay & Young, 1956 † (original description)
Climacoidea Puri, 1956 † (original description)
Domninoides Green, 1956 † (original description)
Ellisonia Müller, 1956 † (original description)
Endoaspis Lochman, 1956 † (original description)
Escharendoceras Flower, 1956 † (original description)
Fremontella Harrington, 1956 † (original description)
Hilgardia Stephenson, 1956 † accepted as Hilgardella Stephenson, 1957 † (original description)
Homeocoryphaenoides David, 1956 † (original description)
Homeomacrurus David, 1956 † (original description)
Homeonezumia David, 1956 † (original description)
Howella Puri, 1956 † accepted as Henryhowella Puri, 1957 (original description)
Ithyektyphus Shaw, 1956 † (original description)
Kukusepasutanka Macdonald, 1956 † (original description)
Laudonia Harrington, 1956 † (original description)
Leptacantholepidus David, 1956 † (original description)
Lobosiphon Flower, 1956 † (original description)
Metallesmeroceras Flower, 1956 † (original description)
Mytonomys Wood, 1956 † (original description)
Neoprioniodus Rhodes & Muller, 1956 † (original description)
Nezzazata Omara, 1956 † (original description)
Oligoryctes Hough, 1956 † (original description)
Oligothyrina Cooper, 1956 † (original description)
Oxygoniolepidus David, 1956 † (original description)
Paleobathygadus David, 1956 † (original description)
Parabufina Smith, 1956 † (original description)
Parrelloides Hofker, 1956 (original description)
Phragmosiphon Flower, 1956 † (original description)
Platysiphon Flower, 1956 † (original description)
Pliendoceras Flower, 1956 † (original description)
Probathygadus David, 1956 † (original description)
Progadus David, 1956 † (original description)
Promacrurus David, 1956 † (original description)
Promerluccius David, 1956 † (original description)
Pseudoarctolepis Brooks & Caster, 1956 † (original description)
Pseudoleptodus Stehli, 1956 † (original description)
Pseudomatthevia Shaw, 1956 † (original description)
Psilocamara Cooper, 1956 † (original description)
Pteropsella Vokes, 1956 † (original description)
Pustulatia Cooper, 1956 † (original description)
Pyknolepidus David, 1956 † (original description)
Rawlinsella Shaw, 1956 † (original description)
Retroclitendoceras Flower, 1956 † (original description)
Rigbyella Stehli, 1956 † (original description)
Spirobolivina Hofker, 1956 (original description)
Stainforthia Hofker, 1956 (original description)
Steineria Hudson, 1956 † accepted as Steinerina Hudson, 1956 † (original description)
Stenosiphon Flower, 1956 † (original description)
Teichertia Glenister, Miller & Furnish, 1956 † (original description)
Thyellisca H. E. Vokes, 1956 (original description)