1964 Eumorphoceras richardsoni McCaleb, Quinn & Furnish: pl.3 fig.5,6.
1973 Eumorphoceras richardsoni.-Saunders: 45, pl.6 fig. 8-15, textfig.17,18c.
1977 Eumorphoceras richardsoni.-Saunders, Manger & Gordon, pl.3 fig.10,11.
1999 Eumorphoceras richardsoni.-Manger, Stephen & Meeks: 358.

Fig. see TAX4001 C (suture, from Saunders,1973,fig.18C).

Holotype SUI 11260