Stora Vede: Sheinwoodian, Sweden
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Gastropoda
- Murchisoniina
- Lophospiridae
|
|||||||
|
Gastropoda
- Euomphalina
- Elasmonematidae
|
|||||||
|
Trochus kolmodini n. sp.
Lindström 1884
|
|||||||
| see common names | |||||||
Geography
| Country: | Sweden | State/province: | Gotland | County: | Fårösund |
| Coordinates: | 57.6° North, 18.4° East (view map) | ||||
| Paleocoordinates: | 8.7° South, 49.6° West (Wright 2013) | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | local area |
Time
| Period: | Silurian | Epoch: | Wenlock |
| Stage: | Sheinwoodian | 10 m.y. bin: | Silurian 2 |
| Key time interval: | Sheinwoodian | Graptolite zone: | Cyrtograptus rigidus |
| Age range of interval: | 432.9 - 430.6 m.y. ago |
Stratigraphy
| Formation: | Slite Beds | Member: | Unit G | ||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: Kockelella patula and Kockelella walliseri conodont zones | |||||
Lithology and environment
| Primary lithology: | "limestone" | ||
| Secondary lithology: | marl | ||
| Environment: | deep subtidal ramp | Tectonic setting: | cratonic basin |
| Geology comments: SEP: Silurian of Gotland has been variably described as a ramp and platform. Based on my read of the literature, I think if falls best into the ramp category. From Samtleben et al. (1996). Geol. Rundsch 85:278-292; "...this unit consists of a carbonate platform with reef mounds and surrounding shoal sediments of mostly pure biodetritic and pleoidal limestones. Here slow and discontinuous accumulation of carbonate material continued in a very shallow water but under normal marine conditions....to the south and southwest the carbonate platform passes with a conspicuous slope into a deeper shelf basin where a uniform alternation of micritic limestones and marls accumulated." Based on information provided in this collection, it is difficult to tell which facies is represented but I have assumed that it represents the deeper facies. | |||
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils,mesofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: Originally lumped: Stora Vede 1, Samsugns 1, and Klints localities; now, it is just Samsugns 1. | |
Metadata
| Database number: | 181904 | ||
| Authorizer: | P. Wagner | Enterer: | P. Wagner |
| Modifier: | P. Wagner | Research group: | marine invertebrate |
| Created: | 2016-10-07 21:42:25 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2016-10-07 21:42:25 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 275. | G. Lindström. 1884. The Silurian Gastropoda and Pteropoda of Gotland. Kongliga Svenska Vetenskaps-Akademiens Handlingasr 19:1-250 [P. Wagner/P. Wagner/P. Wagner] |