After Ruta, 1999, and Lee, Lefebvre & Choi, 2005

<==o †Mitrata Jaekel, 1918 (mitrates)
   |?- †Anatiferopsis
   |?- †Anomalocystites
   |?- †Aspidocarpus bohemicus Ubaghs, 1979
   |?- †Balanocystites
   |?- †Basslerocystis
   |?- †Chaivella
   |?- †Chinianocarpos
   |?- †Diamphidiocystis
   |?- †Eumitrocystella
   |?- †Guichenocarpos
   |?- †Jaekelocarpus
   |?- †Lobocarpus Ubachs, 1998
   |?- †Paranacystis
   |?- †Placocystites
   |?- †Rhenocystis
   |?- †Spermacystis
   |?- †Vizcainocarpus
   |?- †Yachalicystis
   |?-o †Lagynocystidae
   |  `-- †Lagynocystis pyramidalis
   |?-o †Peltocystida Jefferies, 1973
   |  `--o †Peltocystidae
   |     `-- †Peltocystis cornuta
   `?-o †Mitrocystidae Jaekel, 1901
      |-- †Mitrocystides mitra Barrande, 1887
      |-- †Eomitrocystella savilli Beisswenger, 1994
      `--+--o †Mitrocystella
         |  |-- †M. incipiens
         |  `-- †M. abarrandei
         `--o ?†Anomalocystitida Caster, 1952
            `--o †Anomalocystidae sensu Ruta, 1999 [Fig. 13b]
               |-- †Barrandeocarpus jaekeli Ubaghs, 1979; U. Dev. WEu.
               `--+-- †Kierocystis incerta Parsley, 1991; U. Dev. ENA.
                  `--+-- †Barrandeocarpus norvegicus Craske & Jefferies, 1989; U.Dev. WEu.
                     `--+-- †Ateleocystites guttenbergensis Kolata & Jollie, 1982; U.Dev. CNA.
                        `--+--+-- †Kopficystis kirkfieldi Parsley, 1991; U.Dev. ENA.
                           |  `--+-- †Willmanocystis denticulata Kolata & Jollie, 1982; U.Dev. Aust.
                           |     `--+-- †Anomalocystis cornutus Hall, 1858; L.Dev. ENA.
                           |        `--+-- †Bokkeveldia oosthuizeni Ruta & Theron, 1997; L.Dev. SAf.
                           |           `--+-- †Mongolocarpos minzhini Rozhnov, 1990; U.Dev. CAs.
                           |              `--+-- †Placocystites forbesianus de Koninck, 1869; U.Dev. WEu.
                           |                 `--+-- †Rhenocystis latipedunculata Dehm, 1932; L.Dev. CEu.
                           |                    `-- †Victoriacystis wilkinsi Gill & Caster, 1960; U.Dev. Aust.
                           `--+-- †Diamphidiocystis drepanon Kolata & Guensburg, 1979; U.Dev. ENA.
                              `--+-- †Enoploura popei Gaster, 1952; U.Dev. ENA.
                                 `--+-- †Occultocystis koeneni Haude, 1995; L.Dev. SSA.
                                    `--+-- †Notocarpos garratti Philip, 1981; U.Dev. Aust.
                                       `--+-- †Tasmanicytidium burretti Gaster, 1983; U.Dev. Aust.
                                          `--+-- †Placocystella africana (Reed, 1925) L.Dev. SAf.
                                             `--+-- †Australocystis langei Caster, 1954; L.Dev. ESA.
                                                `--o †Allanicytidiidae Caster & Gill 1967
                                                   |?- †Protocytidium elliottae Ruta & Jell, 1999; U.Ord. Aust.
                                                   `-- †Allenicytidium flemingi Gaster & Gill, 1968; L.Dev. NZ.

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