	Authors	Year	Title
	Bisat	1923	Gastrioceras cancellatum (sp. nov.) at Meanwood, Leeds. Transactions of the Leeds Geological Association, 19: 47-50, fig.1-2; Leeds.
	Ramsbottom & Calver	1962	Some marine horizons containing Gastrioceras in North West Europe. Quatrième Congrès International de Stratigraphie et de Géologie du Carbonifère, Heerlen 1958, Compte Rendu 3: 571-576, 2 figs., pl.14, 15, Heerlen.