Bendonaeera Cossmann, 1904 † accepted as Pseudoneaera Sturany, 1901 (original description)
Caelocyclus Cossmann, 1904 † accepted as Coelocyclus Perner in Barrande, 1903 † (original description)
Karstenia Sayn, 1904 † accepted as Carstenia Hyatt, 1903 † (original description)
Oryctomia Cossmann, 1904 † accepted as Oryctomya Dall, 1898 † (original description)
Peristidina Cossmann, 1904 accepted as Peristichia Dall, 1889 (original description)
Plerophorella Cossmann, 1904 † accepted as Pleurophorella Girty, 1904 † (original description)
Prosaptychus Cossmann, 1904 † accepted as Prosoptychus Perner in Barrande, 1903 † (original description)
Rhopalites Cossmann, 1904 † (original description)
Tolypoceras Cossmann, 1904 † accepted as Tolypeceras Hyatt, 1903 † (original description)
Tropoeas Cossmann, 1904 accepted as Tropaeas Dall & Bartsch, 1904 (original description)