1980 Revilloceras Wagner-Gentis: 13.

Type species: Mesoglyphioceras granosum barruelense Wagner-Gentis, 1963, p.11 [OD].

[Revilloceras has been established for forms with blunted tips of ventro-lateral saddle, a general character in small forms].

Original description from Wagner-Gentis, 1980 (pp. 13-14):

"Diagnosis — Shell involute, shape varies from sphaerocone to ellipsocone. The rounded venter passes gradually into the rounded sides. Umbilicus from small to medium sized. Constrictions present. Ornament consists of longitudinal striae crossed by transverse lirae. Suture of fully mature specimens the same as in the immature Dombarites.

Comparisons — In the genus Revilloceras the sides of the ventral lobe do not diverge a great deal as in the genus Dombarites but remain more parallel; nor do the ventrolateral saddles become long and pointed, they are triangular with blunted tips. The lateral lobes are the same as in Dombarites; they also show a tendency to trifidity. The suture has elements of the genus Syngastrioceras, but its ventral lobe is not as wide, nor is the median saddle as broad. Species — To this genus belong:

barruelensis (Wagner-Gentis, 1963) (=Mesoglyphioceras granosus var. barruelense)

globosum sp. nov.

Occurrence — Upper Viséan (Goy, P2, or Qv3 Zone) of Northwest Spain and Germany.

Remarks — In Kullmann & Pitz (1980, Abb. 4C; Abb. 5, fig. 3a - c) the sutures of specimen no. 425 are not the same as in the lectotype of poststriatus Brüning, Abb. 4B. The suture of the former resembles that of the genus Revilloceras. Abb. 4A, D and E are different as well from the lectotype. They possess a very wide ventral lobe and may well belong to a new genus also in the group of Dombarites and Revilloceras. Abb. 5, fig. 4b does not resemble the lectotype either. The suture of the lectotype, as drawn in Abb. 4B, resembles that of the genus Neogoniatites."