After Beaver, Caster, Durham, Fay, Fell, Kesling, Macurda, Moore, Ubaghs & †Wanner, 1967, Drichelt ????, Aceñolaza, 1999 and Botting, 2003

<==o †Cystoidea von Buch, 1846 [nom. correct. Nicholson, 1879 (pro Cystideen von Buch, 1846)] [Cystidea Hall, 1847; Cystideae Forbes, 1848; Cystoidia DeLage & hérouard, 1903; Hydrophoridea Zittel, 1903]
   |--o †Diploporida [paraphyletic]
   |  |?- †Echinoencrinites angulosus Pander
   |  |--o †Glyptosphaeritida
   |  |  |--o †Glyptospheritidae
   |  |  |--o †Dactylocystidae
   |  |  |--o †Protocrinitidae
   |  |  `--o †Gomphocystitidae
   |  |--o †Sphaeronitida
   |  |  |--o †Aristocystitidae
   |  |  `--o †Sphaeronitidae
   |  `--o †Asteroblastida
   |     |--o †Asteroblastidae
   |     `--o †Mesocystidae
   `--o †Rhombifera Zittel, 1879 [taxonomic history] [paraphyletic]
      |?- †Barroubiocystis radiata
      |?- †Cheirocystis fultonensis Sumrall & Schumacher, 2002 [“Glyptocystites” fultonensis]
      |?- †Cheirocrinus
      |?- †Cambrocrinus Orlowski
      |?- †Hadrocystis alternata Paul
      |?- †Lepadocystis moorei (Meek, 1871) [Lepocrinites moorei; Lepadocrinites moorei]
      |?- †Lepocrinites
      |?- †Sphaeronites pomum Gyllenhaal
      |?- †Stichocystis geometrica Jaekel
      |?- †Velieuxicystis ornata
      |?-o †Dichoporita Jaekel, 1899
      |  `--o †Macrocystellidae Bather, 1899; emend. Jaekel, 1918
      |     `--o †Macrocystella Callaway, 1877 [Cystidea Barrade; Mimocystites Barrade]
      |        |--o †M. bavarica (Barrande)
      |        |  |-- †M. b. salairica
      |        |  `-- †M. b. bavarica
      |        |-- †M. bohemica (Barrande)
      |        |-- †M. tasseftensis Chauvel
      |        |-- †M. mariae Callaway, 1877
      |        |-- †M. pauli Gil
      |        |-- †M. azaisi (Thoral)
      |        |?- †M.? grumosa
      |        |?- †M.? durandi Aceñolaza, 1999
      |        `--o †Mimocystites
      |           |?- †M.? khmelevkensis
      |           |?- †M.? diversiformis
      |           |?- †M.? longijugatus
      |           `?- †M.? izyrakensis
      |?- †Glyptocystida Bather, 1899 [taxonomic history]
      |--o †Hemicosmitida
      |  |--o †Hemicosmitidae
      |  |?-o †Caryocrinitidae
      |  |  `--o †Caryocrinites
      |  |     |-- †C. ornatus
      |  |     `-- †C. lagenalis Regnéll
      |  `--o †Heterocystitidae
      |--o †Polycosmitida
      |  |--o †Polycosmitidae
      |  `--o †Stichocystidae
      `--o †Fistuliporites [paraphyletic]
         `--o †Caryocystida Jaekel, 1918
            |--o †Caryocystitidae
            `--o †Echinosphaeritidae Neumayr, 1889
               `--o †Echinosphaerites Wahlenberg, 1821
                  |?- †E. aurantium (Gyllenhaal)
                  |?- †E. grandis
                  |--o †(Echinosphaerites) Wahlenberg, 1821
                  |  `-- †E. (E.) granulatus M'Coy, 1846
                  `--o †(Striatospaerites)
                     `-- †E. (S.) arachnoideus Forbes

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