Asker, Arnestadstrand, Vollen Fm. (Ordovician of Norway)

Where: Oslo, Norway (59.8° N, 10.4° E: paleocoordinates 31.8° S, 9.8° W)

• coordinate estimated from map

When: Vollen Formation, Kukruse (458.0 - 456.8 Ma)

• "Ampyx limestone"

• formation-level stratigraphic resolution

Environment/lithology: marine; limestone

Size classes: macrofossils, mesofossils

Primary reference: W. C. Sweet. 1958. The middle ordovician of the Oslo region, Norway 10. Nautiloid Cephalopods. Norsk Geologisk Tidsskrift 38:1-178 [B. Kröger/B. Kröger/B. Kröger]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 164147: authorized by Björn Kröger, entered by Björn Kröger on 24.11.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Tarphycerida - Tarphyceratidae
"Discoceras boreale" = Sweetoceras boreale
"Discoceras boreale" = Sweetoceras boreale Sweet 1958
Discoceras boreale amplicameratum