Nomenclature
original description
Clark, A. H. (1908). Notice of some crinoids in the collection of the Museum of Comparative Zoology. <i>Bulletin of the Museum of Comparative Zoology, Harvard</i> 51(8):233–248, pl. 1, 2. [details]
basis of record
Clark, A. H. (1950) A monograph of the existing crinoids. 1(4c). Bulletin of the U.S. National Museum 82:1-383, 32 pls. [details]
Other
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]
From editor or global species database
Diagnosis Thalassometridae with brachitaxes all of 2 brachials. Proximal brachials aborally rounded or flattened, typically spinose. Arms up to 30, compressed and sharply carinate, commonly with overlapping spine. Firs t pinnule larger than second but not especially stout or basally broadened. [details]
From editor or global species database