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.
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.
Ruzhencev & Bogoslovskaya	1978	Namyurskiy etap v evolyutsii ammonodey. Pozdnenamyurskiye ammonoidei. Trudy Paleontologicheskogo Instituta Akademiya Nauk SSSR, 167: 1-336, fig.1-108, pl.1-44; Moskva.