1962 ?Eumorphoceras pseudobilingue C Bisat 1928.-Yates: 380, pl.52 fig.1-2.
1964 Eumorphoceras plummeri.-McCaleb: pl.1 fig.3, pl.3 fig.8, text-fig.5.
1965 Eumorphoceras (Edmooroceras) plummeri, pl.25 fig.19-22 (only) [teste Titus, 1999,p.165].
1977 Eumorphoceras plummeri.-Saunders, Manger & Gordon: pl.2 fig.10-11.
1999 Edmooroceras tenuicostatum Titus: 165, fig.6.

[Holotype: UA 77-205-5]

well developed ribs, no flank constrictions. Better developed umbilical cord than in E. plummeri. At dm less than 10 mm thinner and more numerous ribs than in E. plummeri