†Chitinozoa Eisenack, 1931 - chitinozoans Order †Operculatifera Eisenack, 1931 Family †Desmochitinidae Eisenack, 1931 Subfamily †Margachitininae Paris, 1981 Genus †Margachitina Eisenack, 1968 †[Margachitina margaritana] (Eisenack, 1937)