†Chitinozoa Eisenack, 1931 - chitinozoans Order †Operculatifera Eisenack, 1931 Family †Desmochitinidae Eisenack, 1931 Subfamily †Eisenackitininae Paris, 1981 1 Genus †Eisenackitina Jansonius, 1964 2 Genus †Kalochitina Jansonius, 1964 3 Genus †Ordochitina Achab, Asselin & Soufiane, 1993 4 Genus †Vinnalochitina Sutherland, 1994