Megasphaeroceras
Top View
- GSSP) of the Bathonian Stage, at the Base of the Zigzag Zone in the Ravin Du Bès Section (Bas-Auran, Subalpine Basin, SE France
- Late Bajocian Ammonites from Southern Alaska
- Wittmann Sonja.Pdf (10.90Mb)
- Stratigraphy, Structure, and Economic Geology of the Iliamna Quadrangle, Alaska
- Ammonites from Southern Alaska
- First Circum-Pacific Record of Dimorphinites (Ammonoidea, Upper Bajocian) in the Precordillera of Northern Chile S.R