After “WikiSpecies”

<==o †Cyrtonellida Horný, 1963
   |--o †Carcassonnellidae R.J. Horný, 1997
   |  |--o †Baltiscanella R.J. Horný, 1997
   |  |  `-- †B. christianiae
   |  |--o †Carcassonnella R.J. Horný & J.S. Peel, 1996
   |  |  |-- †C. courtessolei
   |  |  |-- †C. pragensis
   |  |  `-- †C. vizcainoi
   |  |--o †Sarkanella R.J. Horný, 1997
   |  |  |-- †S. novaki
   |  |  `-- †S. vokovicensis
   |  `--o †Tachillanella R.J. Horný, 1997
   |     `-- †T. tafilaltensis
   |--o †Cyrtolitidae S.A. Miller, 1889
   |  |--o †Cyclocyrtonella R.J. Horný, 1962
   |  |  |-- †C. advena
   |  |  `-- †C. eremita
   |  |--o †Cyrtodiscus J. Perner, 1903
   |  |  |-- †C. nitidus
   |  |  |-- †C. procer
   |  |  |-- †C. simaki
   |  |--o †Cyrtolites T.A. Conrad, 1838
   |  |  |-- †C. budleighensis
   |  |  |-- †C. claysferryensis
   |  |  |-- †C. craigensis
   |  |  |-- †C. dilatus
   |  |  |-- †C. disjunctus
   |  |  |-- †C. grandis
   |  |  |-- †C. hornyi
   |  |  |-- †C. inornatum
   |  |  |-- †C. inprobus
   |  |  |-- †C. insculptus
   |  |  |-- †C. kochiriensis
   |  |  |-- †C. nodosus
   |  |  |-- †C. occultus
   |  |  |-- †C. ornatus
   |  |  |-- †C. retrorsus
   |  |  |-- †C. rugosus
   |  |  |-- †C. seminulum
   |  |  |-- †C. thraivensis
   |  |  |-- †C. tuboides
   |  |  `-- †C. undulatus
   |  |--o †Cyrtonella J. Hall, 1879
   |  |  |-- †C. expansus
   |  |  |-- †C. mitella
   |  |  `-- †C. pileolus
   |  |--o †Cyrtonellopsis Yochelson, 1958
   |  |  `-- †C. huzzahensis
   |  |--o †Kolihadiscus R.J. Horný, 1992
   |  |  |-- †K. karlikensis
   |  |  `-- †K. tureki
   |  |--o †Neocyrtolites
   |  |--o †Paracyrtolites G.P. Wahlman, 1992
   |  |  |-- †P. carinatus
   |  |  |-- †P. parvus
   |  |  `-- †P. subplanus
   |  |--o †Peelerophon Yochelson, 1982
   |  |  |-- †P. mergli
   |  |  `-- †P. oehlerti
   |  |--o †Quasisinuites R.J. Horný, 1997
   |  |  `-- †Q. rapax
   |  |--o †Sinuitopsina R.J. Horný, 1997
   |  |  `-- †S. plasi
   |  |--o †Sinuitopsis J. Perner, 1903
   |  |  |-- †S. bicarinatus
   |  |  |-- †S. congruens
   |  |  |-- †S. ferrigena
   |  |  |-- †S. hornyi
   |  |  |-- †S. neglecta
   |  |  |-- †S. nodosa
   |  |  |-- †S. subquadrata
   |  |  `-- †S. transgrediens
   |  |--o †Telamocornu V. Berg-Madsen & J.S. Peel, 1994
   |  |  `-- †T. cambriensis
   |  `--o †Yochelsonellis R.J. Horný, 1966
   |     |-- †Y. decorus
   |     |-- †Y. fallax
   |     |-- †Y. fasciculatus
   |     |-- †Y. kokeni
   |     |-- †Y. orphanus
   |     `-- †Y. planicosta
   |--o †Multifariidae V.I. Bjalyy, 1973
   |  `-- †Multifarites
   `--o †Pollicinidae Starobogotov, 1974
      `--o †Pollicina Holpzapfel, 1895
         `-- †P. corniculum (Eichwald, 1860) [taxonomic history]

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