USGS Mesozoic loc. 27361: Late/Upper Pliensbachian, Oregon
collected by R.W. Imlay and R. Christner 1958
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia
- Trigoniida
- Myophorellidae
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Vaugonia oregonensis
Poulton 1979
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see common names |
Geography
Country: | United States | State/province: | Oregon | County: | Grant |
Coordinates: | 44.1° North, 119.4° West (view map) | ||||
Paleocoordinates: | 28.4° North, 56.0° West | ||||
Basis of coordinate: | based on nearby landmark |
Time
Period: | Jurassic | Epoch: | Early/Lower Jurassic |
Stage: | Pliensbachian | 10 m.y. bin: | Jurassic 2 |
Key time interval: | Late/Upper Pliensbachian | ||
Age range of interval: | 189.60000 - 183.00000 m.y. ago |
Stratigraphy
Formation: | Suplee | ||||
Stratigraphy comments: Upper Pliensbachian, Upper 3 m (10 ft) of Suplee Formation (Imlay, 1968) |
Lithology and environment
Primary lithology: | gray "limestone" |
Secondary lithology: | calcareous sandstone |
Lithology description: The Suplee Formation of Lupher (1941) consists of gray granular limestone and calcareous sandstone, weathers light brown, ranges from 30 to 150 feet in thickness. | |
Environment: | marine indet. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils,mesofossils |
Collection methods and comments
Reason for describing collection: | taxonomic analysis | ||
Museum repositories: | USNM | ||
Collectors: | R.W. Imlay and R. Christner | Collection dates: | 1958 |
Metadata
Database number: | 139737 | ||
Authorizer: | G. Stanley | Enterer: | H. Shepherd |
Modifier: | H. Shepherd | ||
Created: | 2013-02-16 08:09:27 | Last modified: | 2013-02-19 15:20:53 |
Access level: | the public | Released: | 2013-02-16 08:09:27 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
40842. | T. P. Poulton. 1979. Jurassic Trigoniid Bivalves from Canada and Western United States of America. Geological Survey of Canada Bulletin 282 [G. Stanley/H. Shepherd/H. Shepherd] |