Hvalstad N, Nakkholmen Fm., 4bγ (Ordovician to of Norway)
Where: Norway (59.9° N, 10.5° E: paleocoordinates 31.8° S, 9.8° W)
• coordinate estimated from map
When: Nakkholmen Formation, Oandu to Oandu (453.0 - 450.5 Ma)
• "Upper Chasmops Shale", in Siveter (1976)
•"4bγ", in in Spjeldnaes (1957)
Environment/lithology: marine; shale
Size classes: macrofossils, mesofossils
Primary reference: D. J. Siveter. 1977. The Middle Ordovician of the Oslo Region, Norway, 27. Trilobites of the Family Calymenidae. Norsk Geologisk Tidsskrift 56:335-396 [B. Kröger/B. Kröger/P. Wagner]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 167239: authorized by Björn Kröger, entered by Björn Kröger on 09.03.2015
Creative Commons license: CC BY (attribution)
Taxonomic list
Show authors, comments, and common names
Strophomenata | |
"Sowerbyella sericea" = Sowerbyella (Sowerbyella) sericea2
"Sowerbyella sericea" = Sowerbyella (Sowerbyella) sericea2 Sowerby 1839 Sowerbyella sericea askerensis
| |
"Sampo indentata" = Leptestiina indentata2
"Sampo indentata" = Leptestiina indentata2 Spjeldnaes 1957 | |
"Leptaena strandi" = Leptaena (Leptaena) strandi2 Spjeldnaes 1957
Rajinesquina (Kjaerina) lepta2 Spjeldnaes 1957 | |
Bivalvia | |
| |
Trilobita | |
Flexicalymene (Flexicalymene) sp. Siveter 1977 trilobite |