Where: Oslo-Asker, Norway (59.9° N, 10.7° E)
• Paleocoordinates: 27.2° S, 69.1° W (Wright 2013)
• coordinate estimated from map
When: Diplograptus foliaceus graptolite zone, Arnestad Formation, Haljala to Haljala (456.8 - 452.8 Ma)
• "Lower Chasmpos Shale 4bα", in Nikolaisen (1961)
Environment/lithology: marine; 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 191101: authorized by Björn Kröger, entered by Björn Kröger on 10.01.2018
Creative Commons license: CC0 (CC0)
Taxonomic list
Artiopoda | |
"Atractopyge dentata" = Cybellela dentata
"Atractopyge dentata" = Cybellela dentata Esmark 1833 trilobite | |
Hemisphaerocoryphe sphaericus Esmark 1833 trilobite | |
Strophomenata | |
"Sampo (Leptellina) oepiki" = Leangella (Leptestiina) derfelensis oepiki
"Sampo (Leptellina) oepiki" = Leangella (Leptestiina) derfelensis oepiki Whittington 1938 |