original descriptionClark, A. H. (1908). New genera of unstalked crinoids. <em>Proceedings of the Biological Society of Washington.</em> 21:125-136.[details]
basis of recordClark, 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]
Present Inaccurate Introduced: alien Containing type locality