Spring Valley: Richmondian, Minnesota
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Gastropoda
- Bellerophontida
- Sinuitidae
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Gastropoda
- Bellerophontida
- Bucaniidae
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Gastropoda
- Murchisoniina
- Lophospiridae
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Gastropoda
- Murchisoniina
- Straparollinidae
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| see common names | |||||||
Geography
| Country: | United States | State/province: | Minnesota | County: | Fillmore |
| Coordinates: | 43.7° North, 92.4° West (view map) | ||||
| Paleocoordinates: | 18.3° South, 115.2° West (Wright 2013) | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | local area |
Time
| Period: | Ordovician | Epoch: | Late Ordovician |
| Stage: | Katian | 10 m.y. bin: | Ordovician 5 |
| Key time interval: | Richmondian | ||
| Age range of interval: | 449.6 - 445.5 m.y. ago |
Stratigraphy
| Geological group: | Maquoketa | Formation: | Elgin | Member: | Scales Shale |
| Stratigraphic resolution: | member |
Lithology and environment
| Primary lithology: | "shale" |
| Secondary lithology: | "limestone" |
| Includes fossils? | Y |
| Includes fossils? | Y |
| Lithology description: Shale interbedded with limestone; sometimes dolomitic. Lithology from F. M. Swain. 1987. Middle and Upper Ordovician Ostracoda of Minnesota and Iowa. Middle and Late Ordovician lithostratigraphy and biostratigraphy of the Upper Mississippi Valley: Minnesota Geological Survey Report of Investigations 35 :99-101. Edited by R. E. Sloan. | |
| Environment: | carbonate indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Feeding/predation traces: | drill holes |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
Metadata
| Also known as: | Ulrich & Scofield Localities | ||
| Database number: | 155710 | ||
| Authorizer: | P. Wagner | Enterer: | P. Wagner |
| Modifier: | P. Wagner | Research group: | marine invertebrate |
| Created: | 2014-04-25 19:12:48 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2014-04-25 19:12:48 |
| Creative Commons license: | CC0 | ||
Reference information
Primary reference:
| 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] |