Segerstad Limestone Assemblage, Siljan, Sweden: Late/Upper Llanvirn, Sweden
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Hyolithida
- Hyolithidae
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Hyolithes sp.
d'Eichwald 1840
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Strophomenata
- Strophomenida
- Christianiidae
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Christiania sp.
Hall and Clarke 1892
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Strophomenata
- Strophomenida
- Leptestiidae
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? Leptestia sp.
Bekker 1922
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| originally entered as "Leptestia? sp." | ||||||||||
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Cephalopoda
- Orthocerida
- Baltoceratidae
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Cochlioceras sp.
Eichwald 1860
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Cephalopoda
- Orthocerida
- Orthoceratidae
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? Orthoceras sp.
Breynius 1832
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| originally entered as "Orthoceras? sp." | ||||||||||
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Cephalopoda
- Orthocerida
- Kionoceratidae
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? Kionoceras sp.
Hyatt 1884
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| originally entered as "Kionoceras? sp." | ||||||||||
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Cephalopoda
- Lituitida
- Sinoceratidae
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Rhynchorthoceras sp.
Remelé 1882
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Cephalopoda
- Lituitida
- Lituitidae
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Ancistroceras sp.
(Remele 1881)
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| Strombolituites | ||||||||||
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? Lituites sp.
Bertrand 1763
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| originally entered as "Lituites? sp." | ||||||||||
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Angelinoceras sp.
Hyatt 1894
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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
- Endocerida
- Endoceratidae
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? Endoceras sp.
Hall 1847
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| originally entered as "Endoceras? sp." | ||||||||||
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? Nanno sp.
Clarke 1894
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| originally entered as "Nanno? sp." | ||||||||||
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? Suecoceras sp.
Holm 1896
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| originally entered as "Suecoceras? sp." | ||||||||||
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Ostracoda
- Hollinocopida
- Eurychilinidae
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Laccochilina sp.
Hessland 1949
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Ostracoda
- Hollinocopida
- Tvaerenellidae
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Euprimites sp.
Hessland 1949
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Trilobita
- Trinucleida
- Raphiophoridae
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Cnemidopyge sp.
Whittard 1955
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Trilobita
- Asaphida
- Asaphidae
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Asaphus sp.
Brongniart 1822
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Pseudoasaphus sp.
Schmidt 1901
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Trilobita
- Corynexochida
- Styginidae
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Bronteopsis sp.
Nicholson and Etheridge 1879
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Trilobita
- Corynexochida
- Illaenidae
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Illaenus sp.
Dalman 1827
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Trilobita
- Phacopida
- Cheiruridae
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Paraceraurus sp.
Männil 1958
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Agnostida
- Metagnostidae
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Trinodus sp.
M'Coy 1846
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| see common names | ||||||||||
Geography
| Country: | Sweden |
| Coordinates: | 61.0° North, 15.0° East (view map) |
| Paleocoordinates: | 33.0° South, 7.9° 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: | red or brown lithified calcareous lime mudstone |
| Secondary lithology: | sandstone |
| Environment: | shallow subtidal indet. |
| Geology comments: Lower portion is red calcilutite; upper is red, variegated calcarenite | |
Taphonomy
Collection methods and comments
| Reason for describing collection: | biostratigraphic analysis |
Metadata
| Database number: | 2942 | ||
| Authorizer: | A. Miller | Enterer: | P. Novack-Gottshall | Research group: | marine invertebrate |
| Created: | 1999-07-22 15:57:46 | Last modified: | 2001-08-16 13:10:31 |
| Access level: | the public | Released: | 2000-11-20 13:53:17 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 106. | V. Jaanusson. 1963. Lower and Middle Viruan (Middle Ordovician) of the Siljan district. Bulletin of Geological Institutions of the University of Uppsala 42(3):1-40 [A. Miller/P. Novack-Gottshall/A. Clement] |