Persnas Limestone Assemblage, Oland, Sweden: Early/Lower Llandeilo, Sweden
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Rhombifera
- Caryocystitidae
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Heliocrinites sp.
Eichwald 1840
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Eocrinoidea
- Cryptocrinitidae
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Cryptocrinites sp.
von Buch 1840
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Strophomenata
- Strophomenida
- Grorudiidae
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? Grorudia sp.
Spjeldnaes 1957
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| originally entered as "Alwynella? sp." | ||||||||||
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Strophomenata
- Strophomenida
- Christianiidae
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Christiania sp.
Hall and Clarke 1892
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Strophomenata
- Strophomenida
- Sowerbyellidae
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? Sowerbyella sp.
Jones 1928
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| originally entered as "Sowerbyella? sp." | ||||||||||
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? Anisopleurella sp.
Cooper 1956
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| originally entered as "Anisopleurella? sp." | ||||||||||
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Strophomenata
- Strophomenida
- Leptestiidae
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Leptestia sp.
Bekker 1922
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Bilobia sp.
Cooper 1956
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Strophomenata
- Strophomenida
- Leptellinidae
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? Leptellina sp.
Ulrich and Cooper 1936
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| originally entered as "Leptellina? sp." | ||||||||||
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Rhynchonellata
- Orthida
- Productorthidae
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Nicolella sp.
Reed 1917
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Cephalopoda
- Orthocerida
- Orthoceratidae
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Orthoceras sp.
Breynius 1832
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Cephalopoda
- Lituitida
- Lituitidae
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Ancistroceras sp.
(Remele 1881)
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| Strombolituites | ||||||||||
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Ostracoda
- Hollinocopida
- Tvaerenellidae
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Uhakiella sp.
Öpik 1937
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Euprimites sp.
Hessland 1949
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Ostracoda
- Hollinocopida
- Tetradellidae
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Tallinnella sp.
Opik 1937
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Ostracoda
- Hollinocopida
- Eurychilinidae
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Chilobolbina sp.
Ulrich and Bassler 1923
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Laccochilina sp.
Hessland 1949
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Ostracoda
- Beyrichicopida
- Ctenonotellidae
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Steusloffia sp.
Ulrich and Bassler 1908
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Agnostida
- Metagnostidae
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Trinodus sp.
M'Coy 1846
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Trilobita
- Corynexochida
- Styginidae
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Phillipsinella sp.
Novak 1885
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Trilobita
- Corynexochida
- Illaenidae
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Illaenus sp.
Dalman 1827
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Trilobita
- Phacopida
- Pterygometopidae
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Estoniops sp.
Mannil 1958
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Trilobita
- Phacopida
- Encrinuridae
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Cybellela sp.
(Reed 1928)
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| spelled with current rank as Cybele (Cybelella) | ||||||||||
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Trilobita
- Asaphida
- Nileidae
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Nileus sp.
Dalman 1827
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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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| see common names | ||||||||||
Geography
| Country: | Sweden |
| Coordinates: | 57.0° North, 17.0° East (view map) |
| Paleocoordinates: | 37.5° South, 7.4° West |
| Geographic resolution: | local area |
Time
| Period: | Ordovician | Epoch: | Middle Ordovician |
| Stage: | Darriwilian | 10 m.y. bin: | Ordovician 3 | *Epoch: | Early/Lower Llandeilo |
| Key time interval: | Early/Lower Llandeilo | ||
| Age range of interval: | 461.30000 - 458.40000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Persnas |
| Stratigraphic resolution: | formation |
Lithology and environment
| Primary lithology: | gray lithified calcareous sandstone |
| Environment: | deep subtidal shelf |
| Geology comments: Grey calcarenite | |
Taphonomy
Collection methods and comments
| Reason for describing collection: | biostratigraphic analysis |
Metadata
| Database number: | 2930 | ||
| Authorizer: | A. Miller | Enterer: | P. Novack-Gottshall | Research group: | marine invertebrate |
| Created: | 1999-07-22 12:12:55 | Last modified: | 1999-07-22 15:12:55 |
| 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] |