| Species | Caloceras aff. torus (D´Orbigny) |
| Author | D´ORBIGNY |
| Group | Psiloceraten |
| Horizon | seebachi-horizon curviornatum-horizon |
| Zone | megastoma-Zone |
| Stage | Middle Hettangian |
Description
The species is very wide forked, the ribs are wide, straight and relatively narrow.
Lange (1941) distinguishes several subspecies. Since the species is very rare in the Alps, it cannot be determined more closely.
* Description according to Kment (2021), supplemented:
Compare
Caloceras avus has curved and more numerous ribs. Caloceras jiohnstoni and Caloceras posttorus have much broader, bulging ribs.
Dimension
Dimensions with D= 58mm
Nw % v. D: 59%
Wh % v. D: 22%
Wb % v. D: 22%
Literature
- 1941 Psiloceras (Caloceras) torus (DʼORBIGNY). – LANGE, p. 91, pl. 7, figs. 1–4, pl. 8, fig. 2.
- 2021 Caloceras aff. torus (D´Orbigny). – KMENT, S. 250, Abb. 9.2-3
