Authors Year Title
Bisat 1924 The Carboniferous goniatites of the North of England and their zones.
Proceedings of the Yorkshire Geological Society, 20: 40-124, pl.1-10; Leeds.
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.
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.
House 1985 Class Cephalopoda.
In: Murray,J.W. (Ed.): Atlas of invertebrate macrofossils.- 114-152, fig.6.7.1-6.7.25, pl.6.7.1-6.7.127; New York.