MolluscaBase taxon details
original description
(of Tryblidium acutum Whitfield, 1889 †) Whitfield R.P. (1889). Observations on some imperfectly known fossils from the Calciferous sandrock of Lake Champlain, and descriptions of several new forms. <em>Bulletin of the American Museum of Natural History.</em> 2:41-63. [details]