WoRMS taxon details

Checked: verified by a taxonomic editorThalassometridae AH Clark, 1908

123152  (urn:lsid:marinespecies.org:taxname:123152)

accepted
Family
marine, brackish, fresh, terrestrial
Clark AH (1908) New genera of unstalked crinoids. Proceedings of the Biological Society of Washington 21:125-136. [details]   
Messing, C.; Hansson, H. (2012). Thalassometridae AH Clark, 1908. In: Messing, C. (2017). World List of Crinoidea. Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=123152 on 2017-12-16

Date
action
by
2004-12-21 15:54:05Z
created
2007-10-10 10:48:29Z
changed
2011-02-23 10:48:32Z
changed
2012-10-25 20:39:55Z
changed

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original description Clark AH (1908) New genera of unstalked crinoids. Proceedings of the Biological Society of Washington 21:125-136. [details]   

basis of record Clark AH (1950) A monograph of the existing crinoids. 1(4c). Bulletin of the U.S. National Museum 82:1-383, 32 pls. [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, in: Costello, M.J. et al. (Ed.) (2001). 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,. 50: pp. 336-351. (look up in IMIS[details]   

additional source Mortensen, Th. (1927). Handbook of the echinoderms of the British Isles. Humphrey Milford/Oxford University Press: London. IX, 471 pp. (look up in IMIS[details]   
From editor or global species database
Checked: verified by a taxonomic editorDiagnosis Tropiometroidea with centrodorsal ranging from discoidal through hemispherical and conical to columnar; cirrus-free aboral apex, rounded or flattened, rugose, tuberculate or spiny. No dorsal star or radial pits. Cirrus sockets large, without distinct ornament or with articular tubercles, in 10 or 15 columns of 1-4 sockets. Cirri long, slender with 30-90 cirrals (except 18-27 in Parametra). Distal cirrals short, with prominent aboral processes or spines (except in Leilametra). Rod-shaped basals present. Subradial cleft may be present. Radials with short exposed surface or concealed; articular facet moderately sloping, more or less angularly bent. Muscle fossae steep, tall and narrow, separated from interarticular ligament by diagonal ridge. Radial cavity narrow. As many as 30 arms. Secundibrachials of 2 or 4 ossicles, the latter with syzygy between brachials 3 and 4. Synarthry between brachials 1 and 2; syzygy between brachials 3-4 (between brachials 2-3 following distalmost axil in Koehlermetra). Further syzygial interval variable. Brachials aborally rounded or laterally compressed and with aboral ridge or spines, commonly with marginal spines. First pinnule longer and stouter than second. Some proximal pinnulars may be enlarged; pinnulars covering gonad broadened in Horaeometra. Pinnules with distinct ambulacral covering plates. [details]

From other sources
Unreviewed: has not been verified by a taxonomic editorRemark Placement of family in Ordo follows NODC Taxonomic Codes [details]
 



LanguageName 
Japanese Unreviewed: has not been verified by a taxonomic editorイロウミシダ  [details]