USGS Field Number 56-120: Bajocian, Oregon
collected by J.H. Beeson, W.R. Dickinson, S.W. Muller, L.W. Vigrass 1956
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Bivalvia
- Trigoniida
- Myophorellidae
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Myophorella cf. argo
Crickmay 1930
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| Hypotype USNM 219885 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Oregon | County: | Grant |
| Coordinates: | 44.0° North, 119.6° West (view map) | ||||
| Paleocoordinates: | 34.9° North, 59.9° West | ||||
| Basis of coordinate: | based on nearby landmark |
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: | Weberg | ||||
| Stratigraphy comments: Middle Bajocian, near middle of Weberg Formation |
Lithology and environment
| Primary lithology: | not reported |
| 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: | J.H. Beeson, W.R. Dickinson, S.W. Muller, L.W. Vigrass | Collection dates: | 1956 |
Metadata
| Database number: | 139739 | ||
| Authorizer: | G. Stanley | Enterer: | H. Shepherd |
| Modifier: | H. Shepherd | ||
| Created: | 2013-02-16 09:00:45 | Last modified: | 2013-02-15 16:02:25 |
| Access level: | the public | Released: | 2013-02-16 09:00:45 |
| 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] |