†Chitinozoa Eisenack, 1931 - chitinozoans Order †Prosomatifera Eisenack, 1972 Family †Lagenochitinidae Eisenack, 1931 Subfamily †Ancyrochitininae Paris, 1981 Genus †Alpenachitina Dunn & Miller, 1964 †Alpenachitina eisenacki Dunn & Miller, 1964