| Hauptrogenstein Formation | |
|---|---|
| Stratigraphic range: Middle Jurassic, | |
 Outcrop at Auenstein Oberegg, Switzerland | |
| Type | Formation |
| Sub-units |
|
| Underlies | Spatkalk |
| Overlies | Wildegg Formation |
| Lithology | |
| Primary | Limestone, Wackestone |
| Location | |
| Country |  Germany Switzerland |
The Hauptrogenstein Formation is a geologic formation in Germany and Switzerland.[2] It preserves fossils that date back to the Middle Jurassic period (Bajocian-Bathonian).[3]
- ^ Gonzalez R, Wetzel A. (1996). Stratigraphy and paleogeography of the Hauptrogenstein and Klingnau Formations (middle Bajocian to late Bathonian), northern Switzerland. Eclogae Geol Helv. 1996;89:695–720.
- ^ Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Archived from the original on 25 March 2022. Retrieved 8 July 2014.
- ^ Miedema, Feiko; Bastiaans, Dylan; Scheyer, Torsten M.; Klug, Christian; Maxwell, Erin E. (2024-03-16). "A large new Middle Jurassic ichthyosaur shows the importance of body size evolution in the origin of the Ophthalmosauria". BMC Ecology and Evolution. 24 (1): 34. doi:10.1186/s12862-024-02208-3. ISSN 2730-7182. PMC 10944604. PMID 38493100.