Also known as La Vraconne

Where: Switzerland (46.8° N, 6.5° E)

• Paleocoordinates: 42.1° N, 27.1° E (Wright 2013)

When: Perte du Rhône Formation, Albian (113.0 - 100.5 Ma)

• The author describes the Albian as the Gault, which is divided into upper, middle and lower intervals. This is a general collection for the upper Albian. Strasser et al. 2016 proposed the three members belong to the Perte du Rhône Formation.

•Strasser et al. 2016: The uppermost early and early middle Albian is represented by marls, which are more developed in the Swiss part of the Jura Mountains (up to 30 m thick), and which contain pyritized ammonites (‘‘Albien pyriteux’’). The third, upper part of the formation is a mica- rich sandstone with variable amounts of glauconite. This unit is present only in the southern French Jura.

Environment/lithology: terrestrial; gray, yellow sandstone

Size class: macrofossils

Primary reference: A. Jaccard. 1869. Jura Vaudois et Neuchatelois. Matériaux pour la carte géologique de la Suisse 6:1-340 [M. Patzkowsky/K. Layou/L. Villier]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 2237: authorized by Mark Patzkowsky, entered by Karen Layou on 28.06.1999, edited by John Alroy

Creative Commons license: CC0 (CC0)