	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.
	Conrad	1984	Les séries Carbonifères du Sahara Central Algérien. Stratigraphie, sédimentation, évolution structurale. Université dÀix Marseille, Thèse de Doctorat d'Etat ès-Sciences naturelles, 370, 69 figs., 34 tabs., 11 pls.
	Delépine	1941a	Les goniatites du Carbonifère du Maroc et des confins Algéro-Marocains du sud (Dinantien-Westphalien). Notes et Mémoires, Service géologique, Protectorat de l'État Francais au Maroc, 56: 1-111, Taf.1-8.
	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.
	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.
	Lemosquet, Conrad & Manger	1985	Ammononoids. [In: M.Diaz, R.H.Wagner, C.F. Winkler Prins & L.F.Granados, eds., The Carboniferous of the World, 2.] International Union of Geological Sciences Publication, 20: 367-372, pls.7-10, Madrid.
	Manger & Pareyn	1979	New Carboniferous dimorphoceratid ammonoids from Algeria and Arkansas. Journal of Paleontology, 53 (3): 657-665, fig.1-3, pl.1.
	Manger	1988	Phylogeny of the Carboniferous Ammonoid Family Dimorphoceratidae. In: Wiedmann,J. & Kullmann,J. (Eds.), Cephalopods - Present and Past: 29-42, 6 text-figs., Stuttgart.
	McCaleb, Quinn & Furnish	1964	The ammonoid family Girtyoceratidae in the Southern Midcontinent. Circular Oklahoma geological Survey, 67: 1-41, 8 figs., pl.1-4; Norman, Okla.
	Moore	1930	Species of the Genus Dimorphoceras in the Bowland Shales. Geological Magazine, 67: 162-168, fig.1-2;
	Moore	1939	The goniatite genus Dimorphoceras and its development in the British Carboniferous. Proceedings of the Yorkshire Geological Society, 24 (2): 103-128, fig.1-21, pl.15;
	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.
	Plummer & Scott	1937	Upper Paleozoic ammonites in Texas. The geology of Texas, vol.3 pt.1, Bull. Texas. Univ., 3701: 1-516, fig.1-88, pl.1-41; Austin, Texas.