Holmen at Vollen, Ampyx limestone (Ordovician of Norway)

Where: Oslo Asker, Norway (59.8° N, 10.5° E: paleocoordinates 31.8° S, 9.8° W)

• coordinate estimated from map

When: 4aβ zone, Vollen Formation, Kukruse (460.9 - 449.5 Ma)

• "Ampyx Limestone 4aβ", in Nikolaisen (1963) = Vollen Fm.

• formation-level stratigraphic resolution

Environment/lithology: marine; limestone

Size classes: macrofossils, mesofossils

Primary reference: F. Nikolaisen. 1963. The Middle Ordovician of the Oslo Region, Norway 14. The trilobite family Telephinidae. Norsk Geologisk Tidsskrift 43:345-399 [B. Kröger/B. Kröger]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 191151: authorized by Björn Kröger, entered by Björn Kröger on 11.01.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

 Proetida - Telephinidae
 Asaphida - Asaphidae
Ogmasaphus kiaeri Henningsmoen 1960 trilobite