Where: Oslo Asker, Norway (59.9° N, 10.7° E: paleocoordinates 32.6° S, 10.0° W)
• coordinate estimated from map
When: Vollen & Elnes Formation, Uhaku to Uhaku (466.0 - 449.5 Ma)
• "Transitional beds Ampyx Limestone 4aβ und Lower Chasmops Shale 4bα", in Nikolaisen (1961)= Vollen Fm. & Elnes Fm.
• formation-level stratigraphic resolution
Environment/lithology: marine; limestone and 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 191102: authorized by Björn Kröger, entered by Björn Kröger on 10.01.2018
Creative Commons license: CC BY (attribution)
Taxonomic list
Trilobita | |
Hemisphaerocoryphe sphaericus Esmark 1833 trilobite |