Kattenhammarsvik, Shore exposure immediately southeast of pier: Gorstian, Sweden
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Gastropoda
- Murchisoniina
- Luciellidae
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Pleurotomaria limata
Lindström 1884
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Lindström 1884 | ||||||
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Gastropoda
- Euomphalina
- Euomphalidae
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Pleurotomaria planorbis n. sp.
(Bronn 1835)
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Lindström 1884 | ||||||
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Gastropoda
- Euomphalina
- Elasmonematidae
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Trochus mollis
Lindström 1884
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Lindström 1884 | ||||||
| see common names | |||||||
Geography
| Country: | Sweden | State/province: | Gotland | County: | Östergarn |
| Coordinates: | 57.4° North, 18.8° East (view map) | ||||
| Paleocoordinates: | 18.4° South, 2.3° West | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | small collection |
Time
| Period: | Silurian | Epoch: | Ludlow |
| Stage: | Gorstian | 10 m.y. bin: | Silurian 2 |
| Key time interval: | Gorstian | Graptolite zone: | Lobograptus scanicus |
| Age range of interval: | 427.4 - 425.6 m.y. ago |
Stratigraphy
Lithology and environment
| Primary lithology: | shelly/skeletal lithified "limestone" | ||
| Secondary lithology: | lithified marl | ||
| Includes fossils? | Y | ||
| Includes fossils? | Y | ||
| Lithology description: "The Hemse beds are a unit of biohermal limestone, bedded limestone, and marlstone about 100 m thick...At two areas [at Ljugarn] the rocks consist of in-place, coalescing stromatoporoid colonies, forming parallel, irregular layers which dip gently eastward. more extensive, surrounding outcrops contain more non-bedded stromatoporoid debris than in-place colonies. In addition to stromatoporoids, the debris deposits include algae, corals, crinoids, bryozoa, brachiopods, mollucs, trilobites, and ostracodes...[Compositional analysis of limestone given in some detail]." | |||
| Environment: | reef, buildup or bioherm | Tectonic setting: | cratonic basin |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Reason for describing collection: | paleoecologic analysis |
| Collection method comments: This is one of several individual bed collections within 20 meters of one another. | |
| Taxonomic list comments:Does not include stromatoporoids, corals, crinoids, algae and microfossils. | |
Metadata
| Also known as: | Katthammarsvik | ||
| Database number: | 184502 | ||
| Authorizer: | P. Wagner | Enterer: | P. Wagner |
| Modifier: | P. Wagner | Research group: | marine invertebrate |
| Created: | 2017-03-08 17:48:58 | Last modified: | 2018-06-26 11:36:18 |
| Access level: | the public | Released: | 2017-03-08 17:48:58 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 10228. | J. B. Knight. 1941. Paleozoic gastropod genotypes. Geological Society of America Special Paper 32:1-510 [P. Wagner/P. Wagner/P. Wagner] |
Secondary references:
| 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] |