†Chitinozoa Eisenack, 1931 - chitinozoans
   Order †Operculatifera Eisenack, 1931
     Family †Desmochitinidae Eisenack, 1931
       1 Subfamily †Desmochitininae Eisenack, 1931
       2 Subfamily †Margachitininae Paris, 1981
       3 Subfamily †Pterochitininae Paris, 1981
       4 Subfamily †Cutichitininae Achab, Asselin & Soufiane, 1993
       5 Subfamily †Eisenackitininae Paris, 1981
       6 Subfamily †Orbichitininae Achab, Asselin & Soufiane, 1993