Aporchais Cossmann, 1913 † accepted as Aporrhais Da Costa, 1778 (original description)
Crestes Cossmann, 1913 † accepted as Phymatopleura Girty, 1939 † (original description)
Mhilaia Cossmann, 1913 † accepted as Mrhilaia Pervinquière, 1912 † (original description)
Microptyxis Cossmann, 1913 † accepted as Microptychis Longstaff, 1912 † (original description)
Pharcidonotus Cossmann, 1913 † accepted as Pharkidonotus Girty, 1911 † (original description)
Praeheterodonta Cossmann, 1913 † (original description)
Romania Cossmann, 1913 † (original description)