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WoRMS taxon details
original description
Clark, A. H. (1908). New genera of unstalked crinoids. <em>Proceedings of the Biological Society of Washington.</em> 21:125-136. [details]
original description
(of Thaumatocrinidae Bather, 1899) Bather FA (1899) A phylogenetic classification of the Pelmatozoa. <i>Report of the British Association for the Advancement of Science (1898)</i>:916–923, 1 fig. [details]
basis of record
Clark, A. H., Clark, A. M. (1967). A monograph of the existing crinoids. <em>Bulletin of the United States National Museum.</em> (82): 1-860. [details]
additional source
Hess H, Messing CG (2011) Comatulida. In: Hess H, Messing CG, Ausich WI. Treatise on Invertebrate Paleontology, Part T, Echinodermata 2 Revised, Crinoidea, vol. 3. University of Kansas Press, Lawrence, Kansas, pp. 70–146. [details]
additional source
Hess H, Messing CG, Ausich WI (2011) Treatise on Invertebrate Paleontology, Part T, Echinodermata 2 Revised, Crinoidea vol. 3. University of Kansas Press, Lawrence, Kansas. [details]
additional source
Hansson, H.G. (2001). Echinodermata, <B><I>in</I></B>: Costello, M.J. <i>et al.</i> (Ed.) (2001). <i>European register of marine species: a check-list of the marine species in Europe and a bibliography of guides to their identification. Collection Patrimoines Naturels,</i>. 50: pp. 336-351. (look up in IMIS) [details]
additional source
Mortensen, Th. (1927). Handbook of the Echinoderms of the British Isles. <em>Oxford University Press.</em> 1-471, figs. 1-269., available online at https://www.biodiversitylibrary.org/page/6277293 [details]
From editor or global species database
Diagnosis Antedonoidea with five (Pentametrocrinus) or ten (Thaumetocrinus) undivided arms. Synarthry between brachials 1-2. Syzygy between brachials 4-5 and distally at variable intervals (2 to 13). First pinnule on brachial 2 or in most Pentametrocrinus on brachial 5. [details]Unreviewed
Description A deep-sea family of Comatulida with the cirri consisting of very elongated segments, usually about four times as long as broad; no division seris, there being either five radials ond five simple arms, or ten radials and ten arms; the joint between the first two post-radial ossicles not a syzygy (this distinuishes Pentametrocrinus from the similarly five-armed Eudiocrinidae); oral pinnules without comb-like tips, all the pinnules rounded in cross-section and without conspicuous side and covering plates; sacculi present. Clark & Courtman-Stock, 1976 <554>. [details]
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