[organisms] see Clade Biota Wagner 2004 [Wiemann, de Queiroz, Rowe, Planavsky, Anderson, Gogarten, Turner & Gauthier 2020]
   Superclass Tunicata Cuvier
     Class Appendicularia Lahille, 1890 - appendicularians
       Family Oikopleuridae Lahille, 1887
         1 Genus Althoffia Lohmann, 1892
         2 Genus Balhochordaes van der Land, 2001, orth. inval. see Genus Bathochordaeus Chun, 1900
         3 Genus Folia Lohmann, 1892
         4 Genus Megalocercus Chun, 1888[1887]
         5 Genus Mesochordaeus Fenaux & Youngbluth, 1990
         6 Genus Mesoikopleura Fenaux, 1993
         7 Genus Oikopleura Mertens, 1830
         8 Genus Pelagopleura Lohmann & Buckmann, 1926
         9 Genus Stegosoma Chun, 1888