1. Ammonitina;Arkell,1957
2. Class Cephalopoda;Blake,1876
3. Le ammoniti del” Rosso Ammonitico” descritte e figurate da G. Meneghini;Bonarelli;Bolletino della Società Malacologica Italiana, Pisa,1899
4. Outline of the Geology of the Neighbourhood of Cheltenham; second edition augmented and revised by H.E. Strickland and J. Buckman;Buckman,1844
5. Type Ammonites, published by the author;Buckman,1909