USGS Mesozoic Loc. 28457 - Twin Creek Limestone: Bajocian, Utah
collected by R.W. Imlay and N.F. Sohl 1961
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Gastropoda
- Procerithiidae
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Rhabdocolpus sp.
Cossmann 1906
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Gastropoda
- Heterostropha
- Cylindrobullinidae
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? Cylindrobullina sp.
von Ammon 1878
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| see common names | |||||||
Geography
| Country: | United States | State/province: | Utah | County: | Utah |
| Coordinates: | 40.0° North, 111.5° West (view map) | ||||
| Paleocoordinates: | 32.0° North, 52.2° West | ||||
| Basis of coordinate: | estimated from map |
Time
| Period: | Jurassic | Epoch: | Middle Jurassic |
| Stage: | Bajocian | 10 m.y. bin: | Jurassic 4 |
| Key time interval: | Bajocian | ||
| Age range of interval: | 170.90000 - 168.20000 m.y. ago |
Stratigraphy
| Formation: | Twin Creek Limestone | Member: | Sliderock | ||
| Stratigraphy comments: Float from top of Sliderock Member (unit 2 of Harris, 1954 p. 199) |
Lithology and environment
| Primary lithology: | "limestone" |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | biostratigraphic analysis | ||
| Museum repositories: | USNM | ||
| Collectors: | R.W. Imlay and N.F. Sohl | Collection dates: | 1961 |
Metadata
| Database number: | 167127 | ||
| Authorizer: | S. Holland | Enterer: | P. Monarrez |
| Created: | 2015-03-07 16:18:06 | Last modified: | 2015-03-07 16:18:06 |
| Access level: | the public | Released: | 2015-03-07 16:18:06 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 54548. | R. W. Imlay. 1967. Twin Creek Limestone (Jurassic) in the Western Interior of the United States. United States Geological Survey Professional Paper 540:1-105 [S. Holland/P. Monarrez] |