USGS Mesozoic loc. 19796, CAS loc. 29017: Bajocian, Alaska
collected by S.N. Daviess 1966
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Bivalvia
- Trigoniida
- Myophorellidae
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Myophorella aff. dawsoni
Whiteaves 1878
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| see common names | |||||||
Geography
| Country: | United States | State/province: | Alaska |
| Coordinates: | 57.3° North, 156.5° West (view map) | ||
| Paleocoordinates: | 60.0° North, 85.4° West (Wright 2013) | ||
| 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: | 170.9 - 168.2 m.y. ago |
Stratigraphy
| Formation: | Kialagvik | ||||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: Bajocian, Parabigotites beds, Kialagvik Formation (Imlay, 1961)
CAS 29017 - Lower Bajocian, Kialagvik 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: | CAS,USNM | ||
| Collectors: | S.N. Daviess | Collection dates: | 1966 |
Metadata
| Database number: | 139542 | ||
| Authorizer: | G. Stanley | Enterer: | H. Shepherd |
| Modifier: | H. Shepherd | ||
| Created: | 2013-02-13 10:02:55 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2013-02-13 10:02:55 |
| Creative Commons license: | CC0 |
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] |