Samsugns 1, in Othem, 4180 m east southeast of Tingstäde Church: Sheinwoodian, Sweden
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Paragastropoda
- Mimospirida
- Onychochilidae
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? Onychochilus contrarium
(Lindström 1884)
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Lindström 1884 | |||||||||
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Paragastropoda
- Mimospirida
- Clisospiridae
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? Onychochilus cochleatum
Lindström 1884
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Lindström 1884 | |||||||||
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Gastropoda
- Murchisoniina
- Murchisoniidae
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Loxonema attenuatum n. sp.
Lindström 1884
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Lindström 1884 | |||||||||
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Murchisonia obtusangula
Lindström 1884
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Lindström 1884 | |||||||||
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Gastropoda
- Bellerophontida
- Bucaniidae
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Bucania stephnae n. sp.
Peel 1991
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Peel 1991 | |||||||||
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Megalomphala wilfredi
Peel 1991
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Peel 1991 | |||||||||
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Gastropoda
- Euomphalina
- Oriostomatidae
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Oriostoma globosum
(von Schlotheim 1820)
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Lindström 1884 | |||||||||
| Oriostoma globosum sculptum | ||||||||||
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Oriostoma angulatum
(Wahlenberg 1821)
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Lindström 1884 | |||||||||
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Oriostoma helicinum
Lindström 1884
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Lindström 1884 | |||||||||
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Gastropoda
- Euomphalina
- Euomphalidae
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Trochus lundgreni
Lindström 1884
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Lindström 1884 | |||||||||
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Cephalopoda
- Oncocerida
- Trimeroceratidae
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Trimeroceras bulbosum
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Pentameroceras mirum
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Cephalopoda
- Oncocerida
- Hemiphragmoceratidae
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Octameroceras pugil
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Octameroceras unguifer
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| 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 g | |||||
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
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
| Also known as: | Includes Stora Vede 1, Samsugns 1, and Klints localities.Oncocerid cephalopods of Slite Beds, unit g | ||
| Database number: | 13633 | ||
| Authorizer: | M. Foote, P. Wagner | Enterer: | M. Foote, P. Wagner |
| Modifier: | P. Wagner | Research group: | marine invertebrate |
| Created: | 2002-04-16 14:18:33 | Last modified: | 2006-03-23 18:45:16 |
| Access level: | the public | Released: | 2002-04-16 14:18:33 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 6137. | S. Stridsberg. 1985. Silurian oncocerid cephalopods from Gotland. Fossils and Strata (18)1-65 [M. Foote/M. Foote/M. Foote] |
Secondary references:
| 15539 | S. Laufeld. 1974. Reference localities for palaeontology and geology in the Silurian of Gotland. Sveriges Geologiska Undersökning Serie C 68(12):1-172 [P. Wagner/P. Wagner] | |
| 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] | |
| 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] |