WoRMS taxon details
Sclerocrinidae Jaekel, 1918
Hemicrinidae Rasmussen, 1961 · unaccepted (synonym)
marine, brackish, fresh, terrestrial
recent + fossil
Jaekel O (1918) Phylogenie und System der Pelmatozoen. <i>Paläontologische Zeitschrift</i> 3(1):1–128, fig. 1–114. [details]
WoRMS (2023). Sclerocrinidae Jaekel, 1918. Accessed at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=714677 on 2023-03-23
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original description
Jaekel O (1918) Phylogenie und System der Pelmatozoen. <i>Paläontologische Zeitschrift</i> 3(1):1–128, fig. 1–114. [details]
original description (of Hemicrinidae Rasmussen, 1961) Rasmussen HW (1961) A Monograph on the Cretaceous Crinoidea. <i>Det Kongelige Danske Videnskabernes Selskab, Biologiske Skrifter</i> 12(1):428 p., 60 pl. [details]
basis of record Hess H. (2011). Cyrtocrinida. <em>In: Hess H, Messing CG, Ausich WI (Eds.), Treatise on Invertebrate Paleontology, Part T, Echinodermata 2 Revised, Crinoidea, vol. 3. University of Kansas Press, Lawrence, Kansas.</em> 180–206. [details]
original description (of Hemicrinidae Rasmussen, 1961) Rasmussen HW (1961) A Monograph on the Cretaceous Crinoidea. <i>Det Kongelige Danske Videnskabernes Selskab, Biologiske Skrifter</i> 12(1):428 p., 60 pl. [details]
basis of record Hess H. (2011). Cyrtocrinida. <em>In: Hess H, Messing CG, Ausich WI (Eds.), Treatise on Invertebrate Paleontology, Part T, Echinodermata 2 Revised, Crinoidea, vol. 3. University of Kansas Press, Lawrence, Kansas.</em> 180–206. [details]
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Diagnosis Cyrtocrinina with cup compact, commonly asymmetrical, highly variable and typically more or less oblique and attached in oblique position to column; cup may be fused with top columnal, and sutures may be indistinct. Small basals may be present. Radial cavity shallow, of variable diameter. Radials mostly without interradial projections. Facet to column concave, large, commonly with stunted columnals. Arms robust, may be reduced in number and size. Primibrachials 1 and 2 may be fused. Brachials may be bipinnulate (2 pinnules per brachial). Length of column variable. [details]
