Also known as Vestbråtan

Where: Oslo, Norway (59.9° N, 10.7° E: paleocoordinates 31.7° S, 9.6° W)

• local area-level geographic resolution

When: Nakkholmen Formation, Oandu to Oandu (453.0 - 450.5 Ma)

• "Upper Chasmops Shale = Norderhov Fm", in Nikolaisen (1983)

•Norderhov Fm. = Nakkholmen Fm. , sensu Owen (1990)

•"4bγ", in Soot Ryen (1960)

• formation-level stratigraphic resolution

Environment/lithology: marine; lime mudstone and limestone

Size classes: macrofossils, mesofossils

Primary reference: F. Nikolaisen. 1983. The Middle Ordovician of the Oslo Region, Norway, 32. Trilobites of the family Remopleurididae. Norsk Geologisk Tidsskrift 62:231-329 [B. Kröger/B. Kröger]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 166819: authorized by Björn Kröger, entered by Björn Kröger on 27.02.2015

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