Where: Oslo-Asker, Norway (59.9° N, 10.6° E: paleocoordinates 31.8° S, 9.7° W)

• coordinate estimated from map

When: Vollen Formation, Kukruse (460.9 - 449.5 Ma)

• "Ampyx Limestone 4aβ", in Nikolaisen (1961) = Vollen Fm.

Environment/lithology: marine; limestone

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 41:279-310 [B. Kröger/B. Kröger]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 191112: authorized by Björn Kröger, entered by Björn Kröger on 10.01.2018

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