†Chitinozoa Eisenack, 1931 - chitinozoans Order †Prosomatifera Eisenack, 1972 Family †Conochitinidae Eisenack, 1931 Subfamily †Eremochitininae Paris, 1981 Genus †Siphonochitina Jenkins, 1967 1 †Siphonochitina formosa Jenkins, 1967