original description
Clark, A. H. (1909). New genera and higher groups of unstalked crinoids. <em>Proceedings of the Biological Society of Washington.</em> 22:173-178. [details]
From editor or global species database
Diagnosis Comasteridae with IBr ossicles joined by synarthry; brachitaxes beyond IBr of 2 or 4(3+4) ossicles (Fig. 2a); first arm syzygy always br3+4; P1 always on br2 [details]