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 1934 The goniatites of the Beyrichoceras zone in the north of England.
Proceedings of the Yorkshire Geological Society, 22: 280-309, fig.1-27, pl.17-24; Leeds.
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.
Korn & Tilsley 2006 Ammonoid assemblages from the Asbian B2b (Early Carboniferous: Mississippian) buildups of the Peak District, England.
Proceedings of the Yorkshire Geological Society, 56 (2): 111-150, 30 fig., 16 tab.
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.
Liang & Zhu 1988 Early Carboniferous cephalopods of Baoshan, Yunnan.
Acta Paleontologica Sinica, 27 (3): 288-302, fig.1-18, pl.1-4; Beijing.