Valangin30 (Cretaceous of Switzerland)

Where: Switzerland (47.0° N, 6.9° E: paleocoordinates 37.9° N, 15.9° E)

• small collection-level geographic resolution

When: Couche de Villers Formation, Valanginian (139.8 - 132.9 Ma)

• this is a marker bed named Astieraschicht

• bed-level stratigraphic resolution

Environment/lithology: yellow marl

• lithology described as a dark yellow marl

Collection methods: This is part of a bed-by-bed listing of fossils of this locality based on a previously published list by Baumberger and Moulin (1898)

Primary reference: C.h. Haefeli, W. Maync, H. J. Oertli and R. F. Rutsch. 1965. Die Typus-Profile des Valanginien und Hauterivien. Bulletin der Vereinigung Schweiz. Petroleum-Geologen Und Ingenieure 31(81):41-75 [M. Patzkowsky/K. Layou/A. Clement]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 2245: authorized by Mark Patzkowsky, entered by Zack Krug on 29.06.1999, edited by Karen Layou

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Ostreida - Ostreidae
"Alectryonia rectangularis" = Ostrea (Alectryonia)
"Alectryonia rectangularis" = Ostrea (Alectryonia) oyster
originally entered as "Alectyonia rectangularis"
 Lucinida - Lucinidae
Cephalopoda
 Ammonitida - Olcostephanidae
"Holcostephanus astieri" = Olcostephanus
"Holcostephanus astieri" = Olcostephanus ammonite
abundant