Where: Oslo, Norway (60.1° N, 9.1° E: paleocoordinates 31.5° S, 10.5° W)

• outcrop-level geographic resolution

When: Arnestad Formation, Haljala to Haljala (456.8 - 453.0 Ma)

• "Lower Chasmops Shale" = Arnestad Fm. sensu Owen et al. (1990)

•"Lower Chasmops Shale", in Nikolaisen (1983)

•"Lower Chasmops Shale 4bα", in Nikolaisen (1961)

Environment/lithology: marine; shale

Size classes: macrofossils, mesofossils

Primary reference: J. F. Bockelie. 1984. The Diploporita of the Oslo region, Norway. Palaeontology 27(1):1-68 [A. Miller/P. Novack-Gottshall/B. Kröger]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 162992: authorized by Björn Kröger, entered by Björn Kröger on 08.10.2014, edited by Pete Wagner

Creative Commons license: CC BY (attribution)