Where: Oslo, Norway (59.9° N, 10.7° E: paleocoordinates 31.7° S, 9.6° W)
• local area-level geographic resolution
When: Dicranograptus clingani graptolite zone, Norderhov Formation, Soudleyan to Soudleyan (458.4 - 454.0 Ma)
• Listed as Norderhov, which Arnold Miller (personal notes) considers continuous with Nakholmen.
•
•= Upper Chasmops shale, 4by in older literature
• formation-level stratigraphic resolution
Environment/lithology: offshore shelf; lithified, black, silty lime mudstone and limestone
Size class: macrofossils
Preservation: cast
Primary reference: A. W. Owen and D. A. T. Harper. 1982. The Middle Ordovician of the Oslo Region, Norway, 31. The upper Caradoc trilobites and brachiopods from Vestbraten, Ringerike. Norsk Geologisk Tidsskrift 62:95-120 [A. Miller/P. Novack-Gottshall/A. Clement]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 2762: authorized by Arnold Miller, entered by Phil Novack-Gottshall on 18.07.1999, edited by Pete Wagner
Creative Commons license: CC BY (attribution)
Taxonomic list
Trilobita | |
"Toxochasmops extensus" = Toxochasmops (Toxochasmops) extensus
"Toxochasmops extensus" = Toxochasmops (Toxochasmops) extensus Boeck 1838 trilobite | |
Atractopyge sp. Hawle and Corda 1847 trilobite | |
Platylichas cf. laxatus McCoy 1846 trilobite | |
Broeggerolithus discors Angelin 1854 trilobite | |
Lonchodomas aff. rostratus Sars 1835 trilobite | |
Remopleurides sp. Portlock 1843 trilobite | |
Stenopareia sp. Holm 1886 trilobite | |
Apianurus abietinus Bruton 1965 trilobite | |
Decoroproetus furubergensis Owens 1970 trilobite | |
Harpidella sp. M'Coy 1849 trilobite | |
Stenolaemata | |
Diplotrypa sp. Nicholson 1879 | |
Lingulata | |
Orbiculoidea sp. d'Orbigny 1847 | |
Rhynchonellata | |
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Rhactorthis sp. Williams 1963 | |
Plectorthis sp. Hall and Clarke 1892 | |
Parastrophinella sp. Schuchert and Cooper 1931 | |
Strophomenata | |
Oxoplecia sp. Wilson 1913
Triplesia aff. insularis Eichwald 1843 | |
Strophomena sp. Rafinesque and De Blainville 1824 | |
Hedstroemina ungula, "Leptaena cf. strandi" = Leptaena (Leptaena) strandi, Kjerulfina polycyma, "Kjerulfina" foliovalve
Hedstroemina ungula Spjeldnaes 1957
"Leptaena cf. strandi" = Leptaena (Leptaena) strandi Spjeldnaes 1957
"Kjerulfina" foliovalve Spjeldnaes 1957 | |
Sowerbyella sp. Jones 1928 | |
Bivalvia | |
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Cephalopoda | |
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Gastropoda | |
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Cyclonema sp. Hall 1852 snail | |
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