1. Arkell, W.J., Kummel, B., Wright, C.W. 1957. Mesozoic Ammonoidea. In: Moore, R.C. (Ed.), Treatise on Invertebrate Palaeontology, Part L, Cephalopods, Ammonoidea. Geological Society of America, University of Kansas Press, Boulder, Colorado, L80-L465.
2. Bardhan, S., Jana, S.K., Roy, P. 2010. Sexual dimorphism and polymorphism in a Callovian Phlycticeras (Ammonoidea) assemblage of Kutch, India. Geobios 43 (3), 269-281, https://doi.org/10.1016/j.geobios.2009.11.006.
3. Buckman, S.S. 1913-1930 Yorkshire Type Ammonites, Volumes 1, 2, pls. 1-130, continued as Type Ammonites, Volumes 3-7, pls. 68-790, and text. Wheldon and Wesley, London. [Reprint, 1972-1976, Historia Naturalis Classica, 93 (1). Cramer Verlag, Lehre and Wheldon and Wesley, Codicote].
4. Collignon, M. 1958. Atlas des fossiles caractéristiques de Madagascar. 2, Bathonien, Callovien. Service Géologique Tananarive, pls. 6-33.
5. Donovan, D.T., Callomon, J.H., Howarth, M.K. 1981. Classification of the Jurassic Ammonitina. In: House, M.R., Senior, J.R. (Eds), The Ammonoidea. Systematic Association Special Volume No.18. Academic Press, London and New York, 101-155.