	Authors	Year	Title
	Bisat & Hudson	1943	The lower Reticuloceras (R1) goniatite succession in the Namurian of the North of England. Proceedings of the Yorkshire Geological Society, 24 (6): 383-440, fig.1, pl.23-30; Wakefield.
	Foord	1903	Monograph of the Carboniferous Cephalopoda of Ireland, Part V, Containing the families Glyphioceratidae (concluded) and Prolecanitidae, with title-page and index. Palaeontolographical Society, 57: 147-234, pl.40-49; London.
	Hind	1905	Notes on the homotaxial equivalents of the beds which immediately succeed the Carboniferous Limestone in the west of Ireland. Proceedings of the Royal Irish Academy, 25 (sect. B): 93-116, pl.5-6; Dublin.