original description
Clark, A. H. (1918). The unstalked crinoids of the Siboga Expedition. <em>Siboga Exped.</em> 42b: 1-300, 28 pl., available online at https://www.biodiversitylibrary.org/page/11716783 [details]
context source (Deepsea)
Mironov A.N., Améziane N., Eléaume M.P. (2014). Deep-sea fauna of European seas: An annotated species check-list of benthic invertebrates living deeper than 2000 m in the seas bordering Europe. Crinoidea. <i>Invertebrate Zoology</i>. Vol.11. No.1: 112–119 [in English]. [details] Available for editors
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
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]
From editor or global species database
Diagnosis Thaumatometra with cirri ~30, of ~10 cirrals, ~6 mm long (when arms are 15 mm long); longest cirral with L/W ratio 6; antepenultimate with L/W ratio 2; penultimate little, if at all, shorter. Segments of proximal pinnules long; third pinnular of P1 twice as long as broad. [details]
Distribution Extreme NW Atlantic, from Baffin Bay to Iceland. Depth range: 2,075-2,623 m [details]
Taxonomy Although AH Clark formally described T. septentrionalis in 1923, his earlier diagnosis distinguishing this species from others in the genus (AH Clark, 1918) takes priority for authorship. [details]
From editor or global species database
From other sources