Bratterud, Arnestad Fm., 4bα: Costonian - Longvillian, Norway
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Strophomenata
- Strophomenida
- Strophomenidae
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Strophomena norvegica
Spjeldnaes 1957
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Spjeldnaes 1957 | ||||||
| recombined as Longvillia norvegica | |||||||
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Strophomenata
- Strophomenida
- Sowerbyellidae
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Eoplectodonta percedens
(Holtedahl 1916)
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Spjeldnaes 1957 | ||||||
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Strophomenata
- Strophomenida
- Christianiidae
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Christiania holtedahli
Spjeldnaes 1957
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Spjeldnaes 1957 | ||||||
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Christiania cf. holtedahli
Spjeldnaes 1957
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Spjeldnaes 1957 | ||||||
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Bivalvia
- Cyrtodontida
- Cyrtodontidae
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Cyrtodontula sp.
Tomlin 1931
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Cyrtodontula aff. complanata
(Foerste 1914)
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| see common names | |||||||
Geography
| Country: | Norway | State/province: | Oslo | County: | Ringerike |
| Coordinates: | 60.1° North, 10.2° East (view map) | ||||
| Paleocoordinates: | 32.4° South, 10.2° West | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Ordovician | Epoch: | Late/Upper Ordovician |
| Stage: | Sandbian | 10 m.y. bin: | Ordovician 4 |
| Key time interval: | Costonian - Longvillian | ||
| Age range of interval: | 458.40000 - 455.20000 m.y. ago |
Stratigraphy
| Formation: | Arnestad | ||||
| Stratigraphy comments: "4bα", in Soot-Ryen (1966) |
Lithology and environment
| Primary lithology: | "limestone" |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils,mesofossils |
Collection methods and comments
| Collection excludes: | some genera |
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 194668 | ||
| Authorizer: | B. Kröger | Enterer: | B. Kröger | Research group: | marine invertebrate |
| Created: | 2018-06-25 14:35:42 | Last modified: | 2018-06-25 14:35:42 |
| Access level: | the public | Released: | 2018-06-25 14:35:42 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 26012. | H. Soot-Ryen and T. Soot-Ryen. 1960. The Middle Ordovician of the Oslo region, Norway: 11, Pelecypoda. Norsk Geologisk Tidsskrift 40(2):81-122 [A. Hendy/A. Hendy] |
Secondary references:
| 53890 | N. Spjeldnaes. 1957. The Middle Ordovician of the Oslo Region, Norway. 8. Brachiopods of the Suborder Strophomenida. Norsk Geologisk Tidsskrift 37(1):1-214 [P. Wagner/P. Wagner/P. Wagner] |