Nomenclature
original description
Clark, A. H. (1923). A revision of the recent representatives of the crinoid family Pentacrinidae, with the diagnoses of two new genera. <em>Journal of the Washington Academy of Sciences.</em> 13: 8-12., available online at https://www.jstor.org/stable/24532764 [details] 
basis of record
Hess H. (2011). Isocrinida. <em>In: Hess, H., Messing, C.G., Ausich, W.I. (Eds.), Treatise on Invertebrate Paleontology, Part T, Echinodermata 2 Revised, Crinoidea, vol. 3. University of Kansas Press, Lawrence, Kansas.</em> 42–69. [details]
Other
additional source
Roux M, Messing CG, Améziane N (2002) Artificial keys to the genera of living stalked crinoids (Echinodermata). <i>Bulletin of Marine Science</i> 70:799–830, 10 figs. [details]
Present
Inaccurate
Introduced: alien
Containing type locality
From editor or global species database
Diagnosis Metacrininae with typically 4 primibrachials (range 3-6); only primibrachials 1-2 united by cryptosyzygy. [details]