†Chitinozoa Eisenack, 1931 - chitinozoans
   Order †Prosomatifera Eisenack, 1972
     Family †Lagenochitinidae Eisenack, 1931
       1 Subfamily †Lagenochitininae Eisenack, 1931
       2 Subfamily †Cyathochitininae Paris, 1981
       3 Subfamily †Pellichitininae Achab, Asselin & Soufiane, 1993
       4 Subfamily †Urochitininae Paris, 1981
       5 Subfamily †Ancyrochitininae Paris, 1981
       6 Subfamily †Angochitininae Paris, 1981