WEB26 apr. 2024 · Family Catenulidae Graff, 1905; Family Chordariidae Marcus, 1945; Family Paracatenulidae Van Steenkiste & Leander, 2023; Family Retronectidae Sterrer & Rieger, 1974; Family Stenostomidae Vejdovsky, 1880; Family Tyrrheniellidae Riedl, 1959