Hauptrogenstein Formation

Hauptrogenstein Formation
Stratigraphic range: Middle Jurassic, Bajocian–Bathonian PreꞒ Ꞓ O S D C P T J K Pg N
Outcrop at Auenstein Oberegg, Switzerland
Type	Formation
Sub-units	Lower Acuminata beds[1] (subfurcatum/niortense zone) Parkinsoni-Schichten (parkinsoni zone) Obere Acuminata-Schichten
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]

Paleofauna

List as per Miedema et al. (2024):[3]

• Argovisaurus martafernandezi
• Bakevelliidae indet.
• Bivalvia indet.
• Ectocochleate cephalopods
• Gervillella
• Goniomya literata
• Homomya
• Lockeia?
• Lytoceras cf. eudesianum
• Machimosaurini indet.[4]
• Megateuthis suevica
• Nautilida indet.
• Parkinsonia (Oraniceras) fretensis
• Pleuromya
• Praeexogyra acuminata
• Procerites sp.
• Teichichnus?
• Terebratula furcilensis
• Terebratula movelierensis
• Thalassinoides
• Trigoniidae indet.

See also

• List of fossiliferous stratigraphic units in Germany

References

1. 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.
2. Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Archived from the original on 25 March 2022. Retrieved 8 July 2014.
3. 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.
4. Scheyer, T. M.; Johnson, M. M.; Bastiaans, D.; Miedema, F.; Maxwell, E. E.; Klug, C. (2024). "Oldest record of Machimosaurini (Thalattosuchia, Teleosauroidea): teeth and scavenging traces from the Middle Jurassic (Bajocian) of Switzerland". Royal Society Open Science. 11 (4). 240071. Bibcode:2024RSOS...1140071S. doi:10.1098/rsos.240071. PMC 11004672. PMID 38601027.