†Chitinozoa Eisenack, 1931 - chitinozoans Order †Operculatifera Eisenack, 1931 Family †Desmochitinidae Eisenack, 1931 Subfamily †Pterochitininae Paris, 1981 Genus †Pterochitina Eisenack, 1955 1 †[Pterochitina perivelata] (Eisenack, 1937)