Stora Vede: Sheinwoodian, Sweden

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda - Murchisoniina - Lophospiridae
Murchisonia tortuosa n. sp. Lindström 1884
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:21.6° South, 2.9° West
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: 433.4 - 430.5 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:2016-10-07 22:06:41
Access level:the public Released:2016-10-07 21:42:25
Creative Commons license:CC BY
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]