	Authors	Year	Title
	Brown	1841	Description of some New Species of Fossil Shells, found chiefly in the Vale of Todmorden, Yorkshire. Transactions Manchester Geological Society 1: 211-232, pl.7, London.
	Brown	1849	Illustrations of the Fossil Conchology of Great Britain and Ireland with descriptions and localities of all the species. Genus V. Goniatites. 28-31, pl.21, Smith, Elder and Co. London.