Also known as Walsum colliery, shaft Walsum 1; Franz Lenze

Where: Germany (51.4° N, 6.8° E: paleocoordinates 42.0° N, 7.8° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Bottrop Formation, Early/Lower Campanian (83.5 - 70.6 Ma)

• Bottrop Formation, conica/gracilis to gracilis/senior zones, lower Campanian (corresponding to the Scaphites gibbus Zone

• group of beds-level stratigraphic resolution

Environment/lithology: marine; glauconitic, calcareous marl

Size class: macrofossils

Collected in 1927/1928

Primary reference: S. Sachs, J. J. Hornung, and U. Scheer. 2018. Mosasaurid and plesiosaurian remains from marginal facies of the lower Campanian (Upper Cretaceous) Bottrop and Vaals formations of western Germany. Cretaceous Research 87:358-367 [P. Mannion/P. Mannion]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 127657: authorized by Roger Benson, entered by Roger Benson on 21.05.2012, edited by Philip Mannion

Creative Commons license: CC BY (attribution)