Where: Aargau, Switzerland (47.5° N, 8.0° E: paleocoordinates 36.5° N, 13.7° E)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Semicostatum other zone, Early/Lower Sinemurian (196.5 - 189.6 Ma)
• bed-level stratigraphic resolution
Environment/lithology: limestone
Size class: macrofossils
Collected in 1961-1988
Primary reference: M. W. Maisch, A. G. Reisdorf, R. Schlatter and A. Wetzel. 2008. A large skull of Ichthyosaurus (Reptilia: Ichthyosauria) from the Lower Sinemurian (Lower Jurassic) of Frick (NW Switzerland). Swiss Journal of Geoscience 101:617-627 [P. Mannion/J. Tennant]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 142834: authorized by Philip Mannion, entered by Jonathan Tennant on 17.04.2013
Creative Commons license: CC BY (attribution)
Taxonomic list
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