Authors Year Title
Brown 1849 Illustrations of the Fossil Conchology of Great Britain and Ireland with descriptions and localities of all the species. Genus V. Goniatites.
28-31, pl.21, Smith, Elder and Co. London.
Foord & Crick 1897 Catalogue of the fossil Cephalopoda in the British Museum (Natural History). Part III, containing the Bactritidae and part  of the Suborder Ammonoidea).
pp.I-XXXIII, 1-303, 145 figs., London.
Moore 1946 The Carboniferous goniatite genera Girtyoceras and Eumorphoceras.
Proceedings of the Yorkshire Geological Society, 25: 387-445, 31 figs., pl.22-27; Wakefield.
Nikolaeva 2008 The Carboniferous Ammonoids from the Gilbertson Collection described by John Phillips.
Palaeontographical Society Monograph, Publication no. 626, issued as part of v. 160 for 2006, 1-70, 40 fig., 17 pl., London
Phillips 1836 Illustrations of the geology of Yorkshire, part II. The Mountain Limestone District.
I-XX, 1-259, pl.1-25; London.
Ramsbottom 1972 Proposed use of the plenary powers to vary the type-species of the genus Homoceras HYATT, 1884 (Class Cephalopoda).
Bulletin of the zoological Nomenclature, 28 (5/6): 161-163, London.