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<==o †Disparida Moore & Laudon, 1943b |?= Several families |--o †Allagecrinidae | `--o †Kallimorphocrinus | `-- †K. lasallensis |--o †Calceocrinidae | |-- †Calceocrinus | |-- †Cremacrinus | |-- †Crinobrachiatus | `--o †Senariocrinus | `-- †S. maucheri |--o †Catillocrinidae | `--o †Eucatillocrinus | `-- †E. bradleyi `--o †Iocrinidae Moore & Laudon, 1943b |--o †Caleidocrinus Waagen & Jahn, 1899 | |--o †(Caleidocrinus) Waagen & Jahn, 1899 sensu Donovan, 1985 | | `-- †C. (C.) multiramus Barrande, in Waagen & Jahn, 1899 sensu Bassler, 1938 | `--o †(Huxleyocrinus) Donovan, 1985 | `-- †C. (H.) turgidulus Ramsbottom, 1961 |--o †Iocrinus Hall, 1866 | |-- †I. trentonesis | |-- †I. polyxo Hall, 1866 [Heterocrinus? (Iocrinus) polyxo Hall, 1866] | |-- †I. shelvensis Ramsbottom | |--+-- †I. pauli Donovan & Gale | | `--+-- †I. llandegleyi Botting, 2003 | | `-- †I. whitteryi Ramsbottom, 1961 | |-- †I. brithdirensis Bates | |-- †I. crassus | `-- †I. subcrassus `== other genera?
Genera and species mentioned in Hess, et al., 1999, but without more detailed information.
†Apodasmocrinus †Calycanthocrinus †Cincinnaticrinus [Heterocrinus] †C. heterodactylus [Heterocrinus heterodactylus] †C. varibrachialus †C. pentagonus †Columbicrinus †C. crassus †Ectenocrinus †E. grandis †E. simplex †Halysiocrinus †H. tunicatus †Homocrinus †H. parvus †Isotomocrinus †I. typus †Myelodactylus [Herpetocrinus] †M. ammonis †M. fletcheri †Ohiocrinus †O. brauni †Paracremacrinus †Pisocrinus †Ristnacrinus †Synbathocrinus †Triacrinus †T. koenigswaldi †Tryssocrinus †T. endotomitus †Zophocrinus
Ausich, W. I. & Messing, C. G., 1999-: Crinoidea - Sea lilies and feather stars.
–iNet: Tree of Life: http://tolweb.org/tree/
Botting, J. P., 2003: Llanvirn (Middle Ordovician) echinoderms from Llandegley rocks, central Wales.
–Palaeontology: Vol. 46, #4, pp. 685-708
Parker, S. P. (ed.), 1982: Synopsis and classification of living organisms. Vols. 1 & 2
–McGrew-Hill Book Company
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