Oslo, Nakholmen Fm. (Ordovician to of Norway)
Where: Oslo-Asker, Norway (59.9° N, 10.7° E)
• Paleocoordinates: 27.5° S, 68.6° W (Wright 2013)
• coordinate estimated from map
When: Nakholmen Formation, Oandu to Oandu (452.8 - 450.5 Ma)
• "4bγ Upper Chasmops Shale", in Nikolaisen (1961)
Environment/lithology: shale
Size classes: macrofossils, mesofossils
Primary reference: F. Nikolaisen. 1961. The Middle Ordovician of the Oslo Region, Norway 7. Trilobites of the suborder Cheirurina. Norsk Geologisk Tidsskrift 41(2-4):279-310 [B. Kröger/B. Kröger/P. Wagner]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 191099: authorized by Björn Kröger, entered by Björn Kröger on 10.01.2018
Creative Commons license: CC0 (CC0)
Taxonomic list
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Artiopoda | |
Paraceraurus perlongus Brøgger 1882 trilobite |