1971 Cravenoceras crassum Ruzhencev & Bogoslovskaya: 256, pl.23 fig.7-9, pl.24 fig.1.
1985 Cravenoceras crassum.- Lemosquet, Conrad & Manger: 418, pl.7 fig.13-14.
2009 Cravenoceras crassum.-Nikolaeva et al., 2009: 88, fig.8, N, O.

Fig. see TAX2264 B-C (sutures).

Holotype. PIN 455/30540

Shell shape similar to that of C. orientale, but shell has no spirals. From C. africanum, C. leion, C. malhamense) differs in a wider shell, early disappearance of lamellae. Similar to arcticum, but has lower whorls.