Segerstad Limestone Assemblage, Oland, Sweden: Late/Upper Llanvirn, Sweden
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Cephalopoda
- Endocerida
- Endoceratidae
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Nanno sp.
Clarke 1894
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Cephalopoda
- Orthocerida
- Orthoceratidae
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? Ctenoceras sp.
Noetling 1884
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| originally entered as "Ctenoceras? sp." | ||||||||||
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Cephalopoda
- Dissidocerida
- Geisonoceratidae
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? Geisonoceras sp.
Hyatt 1884
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| originally entered as "Geisonoceras? sp." | ||||||||||
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Cephalopoda
- Lituitida
- Lituitidae
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Angelinoceras sp.
Hyatt 1894
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Trilobita
- Asaphida
- Asaphidae
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Pseudoasaphus sp.
Schmidt 1901
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Asaphus sp.
Brongniart 1822
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Trilobita
- Asaphida
- Remopleurididae
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Remopleurides sp.
Portlock 1843
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Trilobita
- Corynexochida
- Illaenidae
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Illaenus sp.
Dalman 1827
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Agnostida
- Metagnostidae
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Trinodus sp.
M'Coy 1846
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Ostracoda
- Palaeocopida
- Leperditellidae
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Conchoprimitia sp.
Opik 1935
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Ostracoda
- Hollinocopida
- Eurychilinidae
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Laccochilina sp.
Hessland 1949
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Chilobolbina sp.
Ulrich and Bassler 1923
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Ostracoda
- Hollinocopida
- Tetradellidae
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Tallinnella sp.
Opik 1937
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? Sigmobolbina sp.
Henningsmoen 1953
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| originally entered as "Sigmobolbina? sp." | ||||||||||
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Piretia sp.
Jaanusson 1957
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Piretella sp.
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Ostracoda
- Hollinocopida
- Tvaerenellidae
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Euprimites sp.
Hessland 1949
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Ostracoda
- Leperditellocopida
- Aparchitidae
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Baltonotella sp.
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Ostracoda
- Beyrichicopida
- Ctenonotellidae
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Steusloffia sp.
Ulrich and Bassler 1908
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Glyptosphaeritida
- Glyptosphaeritidae
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Glyptosphaerites sp.
Müller 1854
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Rhombifera
- Echinosphaeritidae
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Echinosphaerites sp.
Wahlenberg 1818
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| see common names | ||||||||||
Geography
| Country: | Sweden |
| Coordinates: | 57.0° North, 17.0° East (view map) |
| Paleocoordinates: | 37.1° South, 7.1° West |
| Geographic resolution: | local area |
Time
| Period: | Ordovician | Epoch: | Middle Ordovician |
| Stage: | Darriwilian | 10 m.y. bin: | Ordovician 3 | *Epoch: | Late/Upper Llanvirn |
| Key time interval: | Late/Upper Llanvirn | ||
| Age range of interval: | 461.30000 - 458.40000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Segerstad Limestone |
| Stratigraphic resolution: | formation |
Lithology and environment
| Primary lithology: | desiccation cracks,red or brown lithified calcareous sandstone |
| Environment: | peritidal |
| Geology comments: Red calcarenite with occasional mudcracks and algal laminations | |
Taphonomy
Collection methods and comments
| Reason for describing collection: | biostratigraphic analysis |
Metadata
| Database number: | 2929 | ||
| Authorizer: | A. Miller | Enterer: | P. Novack-Gottshall | Research group: | marine invertebrate |
| Created: | 1999-07-22 12:14:44 | Last modified: | 1999-07-22 15:14:44 |
| Access level: | the public | Released: | 2000-11-20 13:53:17 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 104. | V. Jaanusson. 1960. The Viruan (Middle Ordovician) of Oland. Bulletin of the Geological Institutions of the University of Uppsala 38:207-287 [A. Miller/P. Novack-Gottshall/A. Clement] |