1983  Beyrichoceras mackellari Campbell, Brown & Coleman: 89, fig.11F,G; 12A-C; 13.
     1993  Beyrichoceras, Bollandoceras cf. mackellari.-Roberts,  Jones & Jenkins: 367.

Roberts, Jones & Jenkins, 1993, p.367: Related to Bollandoceras ecavatum, B. micronotum, B. submicronotum.

Fig. TAX6093 A-E (suture and cross-section, from Campbell et al., 1983).