(partly) after Hess, Ausich, Brett & Simms, 1999, and Parsley & Zhao, 2006
<==o Blastozoa Sprinkle, 1973 |?-o †Eocrinoidea Jaekel, 1918 [paraphyletic] | |?- †Balangicystis rotundus Parsley & Zhao, 2006 | `--o †Gogiida Broadhead, 1982 | |-- †Rhopalocystis Ubaghs, 1963 | `--o †Eocrinidae Jaekel, 1918 emend. Parsley & Zhao, 2006 [Sinoeocrinidae Zhao et al., 1994 (pars); Lichenoididae Jaekel, 1918 sensu Zhao et al., 1994 (pars)] | |-- †Acanthocystites Barrande 1887 | |-- †Akadocrinus Prokop, 1962 | |--o †Gogia Walcott, 1917 | | |-- †G. hobbsi Sprinkle, 1973 | | |-- †G. longidactylus (Walcott, 1886) | | |-- †G. ojenai Durham, 1919 | | |-- †G. prolifica Walcott, 1917 | | `-- †G. spiralis | |--o †Sinoeocrinus Zhao et al., 1994 [Paragogia Zhao et al., 1994; Curteocrinus Zhao et al., 1994] | | |-- †S. lui Zhao et al., 1994 [Sinoeocrinus curtobrachiolus Zhao et al., 1994; Sinoeocrinus lepidus Zhao et al., 1994; Sinoeocrinus longus Zhao et al., 1994; Sinoeocrinus minus Zhao et al., 1994; Paragogia globosa Zhao et al., 1994; Curteocrinus guizhouensis Zhao et al., 1994] | | `?- †“S. globus” Zhao, Huang & Gong, 1999 [nomen nudum] | `-- †Lichenoides Barrande, 1846 `--o †Blastoidea Sprinkle, 1973 |?-o †Codaster Wachsmuth and Springer, 1886 | |-- †C. osgoodensis (Miller, 1879) [Stephanocrinus osgoodensis Miller, 1879] | |-- †C. pentalobus [Stephanocrinus pentalobus (Hall, 1882)] | `-- †C. pulchellus [Stephanocrinus pulchellus (Miller and Dyer, 1878)] |?- †Globoblastus norwoodi |?- †Macurdablastus |?- †Schizoblastus |?- †Cryptoblastus |?- †Pyramiblastus |?- †Orophocrinus |?- †Globoblastus |?- †Pentremoblastus [polyphyletic Pentremitidae?] |?-+-- †Strongyloblastus | `-- †Pentremites Say, 1820 [polyphyletic Pentremitidae?] |?- †Troosticrinus |?-o †Ambolostomatidae | `-- †Ambolostoma |?-o †Belocrininae | `-- †Belocrinus |?-o Troosticrinidae | `--+-- †Metablastus | `--+-- †Calycoblastus [polyphyletic Pentremitidae?] | `-- †Rhopaloblastus [polyphyletic Pentremitidae?] `--+-- †Pentremitidea medusae [polyphyletic Pentremitidae?] `--+-- †Conuloblastus [polyphyletic Pentremitidae?] `--+-- †Devonoblastus [polyphyletic Pentremitidae?] |-- †Eleutherocrinus [polyphyletic Pentremitidae?] `--o †Hyperoblastidae `--+--o †Hyperoblastus | `-- †H. reimanni `-- †Petaloblastus
Reference(s):
- Hess, H., Ausich, W. I., Brett, C. E. & Simms, M. J., (eds.) 1999: Fossil Crinoids.
–Cambridge University Press, Cambridge, England, 1999, xv-275 - Parsley, R. L. & Zhao, Y., 2006: Long stalked eocrinoids in the basal Middle Cambrian Kaili Biota, Taijiang County, Guizhou Province, China.
–Journal of Paleontology: Vol. 80, #6, pp. 1058-1071