Helgö Island (=Hovindsholm, Helgøya), Lake Mjosa: Aseri, Norway
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Tergomya
- Kiringellida
- Hypseloconidae
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? Hypseloconus conoidea
(Koken and Perner 1925)
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Tergomya
- Cyrtonellida
- Carcassonnellidae
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? Bucania christianiae
(Koken and Perner 1925)
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Cephalopoda
- Tarphycerida
- Tarphyceratidae
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Discoceras boreale
Sweet 1958
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Sweet 1958 | |||||||||
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Cephalopoda
- Tarphycerida
- Trocholitidae
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Trocholites hospes
(Remele 1880)
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Sweet 1958 | |||||||||
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Cephalopoda
- Discosorida
- Cyrtogomphoceratidae
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Strandoceras strandi
Sweet 1958
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Sweet 1958 | |||||||||
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Protophragmoceras tyriense
Strand 1934
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Sweet 1958 | |||||||||
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Cephalopoda
- Ellesmerocerida
- Bathmoceratidae
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Bathmoceras norvegicum
Sweet 1958
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Sweet 1958 | |||||||||
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Cephalopoda
- Actinocerida
- Ruedemannoceratidae
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Ruedemannoceras sp.
Flower 1940
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Sweet 1958 | 3 specimens | ||||||||
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Cephalopoda
- Actinocerida
- Armenoceratidae
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Nybyoceras sp.
Troedsson 1926
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Sweet 1958 | |||||||||
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Nybyoceras holmi
Sweet 1958
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Sweet 1958 | |||||||||
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Cephalopoda
- Actinocerida
- Gonioceratidae
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Hoeloceras helgoeyense
Sweet 1958
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Sweet 1958 | |||||||||
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Cephalopoda
- Lituitida
- Sinoceratidae
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Rhynchorthoceras helgoeyense
Sweet 1958
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Sweet 1958 | 9 specimens | ||||||||
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Cephalopoda
- Lituitida
- Lituitidae
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Ancistroceras undulatum
Boll 1857
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Sweet 1958 | 8 specimens | ||||||||
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Trilacinoceras discors
(Holm 1891)
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Sweet 1958 | |||||||||
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Trilacinoceras norvegicum
Sweet 1958
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Sweet 1958 | |||||||||
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Cyclolituites lynnensis
(Kjerulf 1865)
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Sweet 1958 | |||||||||
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Cephalopoda
- Orthocerida
- Sactorthoceratidae
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Sactorthoceras sp.
Kobayashi 1934
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Sweet 1958 | |||||||||
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Cephalopoda
- Orthocerida
- Proteoceratidae
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Stereospyroceras sp.
Flower 1955
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Sweet 1958 | |||||||||
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Cephalopoda
- Orthocerida
- Tripteroceratidae
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Allumettoceras mjoesense
Sweet 1958
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Sweet 1958 | |||||||||
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Cephalopoda
- Orthocerida
- Stereoplasmoceratidae
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Stereoplasmoceras longicameratum
Sweet 1958
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Sweet 1958 | |||||||||
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Stereoplasmocerina approximata
Sweet 1958
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Sweet 1958 | |||||||||
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Stereoplasmocerina lineata
Sweet 1958
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Sweet 1958 | |||||||||
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Cephalopoda
- Orthocerida
- Orthoceratidae
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Ctenoceras sp.
Noetling 1884
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Sweet 1958 | |||||||||
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Cephalopoda
- Endocerida
- Cyrtendoceratidae
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Cyrtendoceras sp.
Remelé 1886
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Sweet 1958 | |||||||||
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Cephalopoda
- Endocerida
- Endoceratidae
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Vaginoceras sp.
Hyatt 1884
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Sweet 1958 | |||||||||
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Endoceras sp.
Hall 1847
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Sweet 1958 | |||||||||
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Paragastropoda
- Mimospirida
- Clisospiridae
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Mimospira turrita
(Koken and Perner 1925)
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Gastropoda
- Murchisoniina
- Gosseletinidae
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Clathrospira elliptica
(Hisinger 1837)
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Gastropoda
- Murchisoniina
- Straparollinidae
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? Helicotoma norvegica
(Koken and Perner 1925)
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| should be H. paullulus | ||||||||||
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Gastropoda
- Euomphalina
- Lesueurillidae
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Pararaphistoma (Pararaphistoma) schmidti
(Koken 1889)
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Gastropoda
- Euomphalina
- Ophiletidae
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Lytospira norvegica
Koken and Perner 1925
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Gastropoda
- Bellerophontida
- Sinuitidae
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Sinuites (Sinuites) niger
Koken 1897
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| see common names | ||||||||||
Geography
| Country: | Norway | State/province: | Nes-Hamar |
| Coordinates: | 60.0° North, 11.2° East (view map) | ||
| Paleocoordinates: | 33.7° South, 10.3° West | ||
| Basis of coordinate: | estimated from map | ||
| Geographic resolution: | outcrop |
Time
| Period: | Ordovician | Epoch: | Middle Ordovician |
| Stage: | Darriwilian | 10 m.y. bin: | Ordovician 3 |
| Key time interval: | Aseri | ||
| Age range of interval: | 462.9 - 460.4 m.y. ago |
Stratigraphy
Lithology and environment
| Primary lithology: | "limestone" |
| Environment: | carbonate indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils,mesofossils |
Collection methods and comments
| Collection excludes: | some genera |
| Reason for describing collection: | general faunal/floral analysis |
Metadata
| Database number: | 56194 | ||
| Authorizer: | P. Wagner, B. Kröger | Enterer: | P. Wagner, B. Kröger |
| Modifier: | B. Kröger | Research group: | marine invertebrate |
| Subset of collection #: | 2950 | ||
| Created: | 2005-11-15 12:25:31 | Last modified: | 2014-11-23 09:28:10 |
| Access level: | the public | Released: | 2005-11-15 12:25:31 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 15157. | E. L. Yochelson. 1963. The Middle Ordovician of the Oslo Region, Norway. 15. Monoplacophora and Gastropoda. Norsk Geologisk Tidsskrift 43(2):133-213 [P. Wagner/P. Wagner/P. Wagner] |
Secondary references:
| 53527 | W. C. Sweet. 1958. The middle ordovician of the Oslo region, Norway 10. Nautiloid Cephalopods. Norsk Geologisk Tidsskrift 38:1-178 [B. Kröger/B. Kröger/B. Kröger] |