Bjørkåsholmen, Slemmestad: Tremadocian - Floian, Norway
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Trilobita
- Asaphida
- Asaphidae
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Megistaspis (Paramegistaspis) planilimbata
(Angelin 1851)
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Trilobita
- Asaphida
- Nileidae
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Symphysurus angustatus
(Sars and Boeck 1838)
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| see common names | |||||||
Geography
| Country: | Norway | State/province: | Oslo-Asker |
| Coordinates: | 59.8° North, 10.5° East (view map) | ||
| Paleocoordinates: | 37.1° South, 14.3° West | ||
| Basis of coordinate: | based on nearby landmark | ||
| Geographic resolution: | outcrop |
Time
| Period: | Ordovician | Epoch: | Early/Lower Ordovician |
| Key time interval: | Tremadocian - Floian | Trilobite zone: | Megistaspis (Paramegistaspis) planilimbata |
| Age range of interval: | 485.40000 - 470.00000 m.y. ago |
Stratigraphy
| Formation: | Tøyen | Member: | Hagastrand |
| Stratigraphic resolution: | formation |
Lithology and environment
| Primary lithology: | "limestone" |
| Includes fossils? | Y |
| Environment: | carbonate indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils,mesofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 190979 | ||
| Authorizer: | B. Kröger | Enterer: | B. Kröger |
| Created: | 2018-01-02 08:16:04 | Last modified: | 2018-01-02 08:16:04 |
| Access level: | the public | Released: | 2018-01-02 08:16:04 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 63969. | O. A. Hoel. 1999. Trilobites of the Hagastrand Member (Tøyen Formation, lowermost Arenig) from tbe Oslo Region, Norway, Part Il : Remaining non-asaphid groups. Norsk Geologisk Tidsskrift 79:259-280 [B. Kröger/B. Kröger] |