Samsugns C, in Othem: Sheinwoodian, Sweden

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda - Murchisoniina - Lophospiridae
Pleurotomaria bicincta
    = Lophospira gothlandica Ulrich and Scofield 1897
Ulrich and Scofield 1897
Gastropoda - Murchisoniina - Trochonematidae
Trochonema turritum Lindström 1884
Gastropoda - Murchisoniina - Luciellidae
Pleurotomaria limata Lindström 1884
Gastropoda - Murchisoniina - Gosseletinidae
Pleurotomaria wisbeyensis Lindström 1884
Pleurotomaria gradata Lindström 1884
Pleurotomaria aequilatera (Wahlenberg 1821)
Gastropoda - Murchisoniina - Phanerotrematidae
Pleurotomaria othemensis n. sp. Lindström 1884
Gastropoda - Murchisoniina - Porcelliidae
Pleurotomaria scutulata Lindström 1884
Gastropoda - Meekospiridae
Macrochilina fenestrata n. sp. Lindström 1884
Gastropoda - Bellerophontida - Bucaniidae
Megalomphala wilfredi Peel 1991
Peel 1991
Gastropoda - Euomphalina - Oriostomatidae
Cyclonema striatum
    = Oriostoma leda d'Orbigny 1850
Wagner 2023
Gastropoda - Euomphalina - Pseudophoridae
Trochus stuxbergi Lindström 1884
Trochus profundus n. sp. Lindström 1884
Trochus undulans Lindström 1884
Gastropoda - Euomphalina - Holopeidae
Euomphalus tuba n. sp. Lindström 1884
Gastropoda - Euomphalina - Helicotomidae
Trochus wisbyensis Lindström 1884
Trochus lamellosus n. sp. Lindström 1884
Gastropoda - Euomphalina - Euomphalidae
Trochus lundgreni Lindström 1884
Pleurotomaria alata (Wahlenberg 1821)
Oriostoma discors (Sowerby 1814)
Oriostoma rugosa
Oriostoma discors var. rugosa
    = Poleumita rugosa Sowerby 1814
Wagner 2023
Gastropoda - Euomphalina - Elasmonematidae
Trochus mollis Lindström 1884
Trochus incisus Lindström 1884
Gastropoda - Euomphalina - Craspedostomatidae
Craspedostoma filistriatum Lindström 1884
Craspedostoma elegantulum n. sp. Lindström 1884
see common names

Geography
Country:Sweden State/province:Gotland County:Fårösund
Coordinates: 57.8° North, 18.7° East (view map)
Paleocoordinates:21.4° South, 2.8° 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
Age range of interval: 433.4 - 430.5 m.y. ago
Stratigraphy
Formation:Slite Beds Member:Ryssnäs
Stratigraphic resolution:group of beds
Stratigraphy comments: = Slite Beds, unit C
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
Taxonomic list comments:Most specimens at Riksmuseet.
Metadata
Database number:154965
Authorizer:P. Wagner Enterer:P. Wagner
Research group:marine invertebrate
Created:2014-03-25 22:21:16 Last modified:2014-03-25 22:21:16
Access level:the public Released:2014-03-25 22:21:16
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]

Secondary references:

16254 J. S. Peel. 1991. Salpingostomatiform and related bellerophontacean gastropods from Greenland and the Baltic region. Grønlands Geologiske Undersøgelse Bulletin 161:67-116 [P. Wagner/P. Wagner]
11411 E. O. Ulrich and W. H. Scofield. 1897. The Lower Silurian Gastropoda of Minnesota. The Paleontology of Minnesota 39(2):813-1081 [P. Wagner/P. Wagner/P. Wagner]
9042 P. J. Wagner. 2023. Paleozoic Gastropod, Rostroconch, Helcionelloid and Tergomyan Database (2006 - 2023). [P. Wagner/P. Wagner/P. Wagner]