Where: Ringerike, Norway (60.3° N, 10.4° E: paleocoordinates 31.6° S, 9.9° W)

• coordinate estimated from map

When: Nakkholmen Formation, Keila to Keila (453.9 - 451.8 Ma)

• "Upper Chasmops Shale" = Nakkolmen Formation sensu Owen et al. (1990)

Environment/lithology: marine; shale

Size classes: macrofossils, mesofossils

Preservation: cast

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 163394: authorized by Björn Kröger, entered by Björn Kröger on 26.10.2014

Creative Commons license: CC BY (attribution)