Authors Year Title
Currie 1954 Scottish Carboniferous Goniatites.
Transactions of the Royal Society. Edinburgh, 62, part 2 (No.14): 527-602, fig.1-9, 1tab., pl.1-4; Edinburgh.
House 1971 The goniatite Wrinkle-Layer.
Smithsonian Contribution Paleobiol., 3: 23-32, fig.1-2, pl.1-3;
Moore 1950 The Genus Sudeticeras and its Distribution in Lancashire and Yorkshire.
Journal of the Manchester Geologists Association., 1950 (2): 31-50, pl.1-3; Manchester.