Diplocrinus Döderlein, 1912

David, Jerome, Roux, Michel, Messing, Charles G. & Ameziane, Nadia, 2006, Revision of the pentacrinid stalked crinoids of the genus Endoxocrinus (Echinodermata, Crinoidea), with a study of environmental control of characters and its consequences for taxonomy, Zootaxa 1156, pp. 1-50 : 37

publication ID	https://doi.org/ 10.5281/zenodo.172265
DOI	https://doi.org/10.5281/zenodo.6260997
persistent identifier	https://treatment.plazi.org/id/467B4160-FFB6-FB47-FE96-6F0A5D730441
treatment provided by	Plazi
scientific name	Diplocrinus Döderlein, 1912
status

Treatment

Subgenus Diplocrinus Döderlein, 1912

Type species of the subgenus: Pentacrinus maclearanus Thomson, 1872 b.

Synomymy: Cenocrinus (Diplocrinus) Döderlein, 1912: 21 ; Diplocrinus A.H. Clark, 1923: 11 ; Diplocrinus (Diplocrinus) Roux, 1977: 64 ; Endoxocrinus (Diplocrinus) David, 1998: 202 (unpublished data) and Roux et al., 2002: 820.

Emended diagnosis

A subgenus of Endoxocrinus with Br2ax in all brachitaxes, very rarely Br1ax or Br3ax; number of internodals per mature noditaxis strongly variable; usually distal callus at stalk end; number of cirrals per cirrus 19–35 (mode usually <30), each cirral relatively long (usually> 1.1 mm); orientation of proximal cirri variable.

Included species

Pentacrinus alternicirrus Carpenter, 1882 (= Isocrinus sibogae Döderlein, 1907 ); Pentacrinus maclearanus Thomson, 1878 ; Pentacrinus wyvillethomsoni Jeffreys, 1870 .