Diplommatinidae

Diplommatinidae is a family of small land snails, also known as staircase snails, with an operculum, terrestrial gastropod mollusks in the superfamily Cyclophoroidea. The Cochlostomatinae Kobelt, 1902, were previously considered a subfamily of the Diplommatinidae, but are now known to be a separate family.

==Genera== thumb|right|upright|†Euthema hesoana in [[Burmese amber]] Genera included within the Diplommatinidae include: Adelopoma Doering, 1885 Arinia H. Adams & A. Adams, 1856 Benigoma Kuroda, 1928 Cardiostoma F. Sandberger, 1870 † Clostophis Benson, 1860 Diancta E. von Martens, 1864 Diplommatina Benson, 1849 Eclogarinia Wenz, 1939 Entypogyra Hrubesch, 1965 † Euthema Yu, Wang & Pan, 2018 † Fermepalaina Iredale, 1945 Gastroptychia Kobelt & Möllendorff, 1900 Habeas Simone, 2013 Habeastrum Simone, 2019 Helicomorpha Möllendorff, 1890 Hungerfordia Beddome, 1889 Laotia Saurin, 1953 Luzonocoptis Páll-Gergely & Hunyadi, 2017 Malarinia Haas, 1961 Moussonia O. Semper, 1865 Niahia Vermeulen, 1996 Nicida W.T. Blanford, 1868 Notharinia Vermeulen, Phung & Truong, 2007 Occidentina Harzhauser & Neubauer, 2018 † Opisthostoma W. T. Blanford & H. F. Blanford, 1860 Palaina O. Semper, 1865 Palmatina Iredale, 1944 Paradiancta Quadras & Möllendorff, 1895 Plectostoma H. Adams, 1865 Pseudonicida Hrubesch, 1965 † Pugnellia Oppenheim, 1895 † Styx Oppenheim, 1895 † Velepalaina Iredale, 1937