USGS Mesozoic Loc. 25638: Late/Upper Oxfordian - Early/Lower Kimmeridgian, California
collected by L. D. Clark and N. K. Huber 1955
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Cephalopoda
- Belemnitida
- Belemnitidae
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"Belemnites" pacificus
Gabb 1864
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Bivalvia
- Pectinida
- Buchiidae
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Buchia concentrica
(White 1888)
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| original and current combination Aucella concentrica | |||||||
| see common names | |||||||
Geography
| Country: | United States | State/province: | California | County: | El Dorado |
| Coordinates: | 38.5° North, 121.0° West (view map) | ||||
| Paleocoordinates: | 33.2° North, 66.7° West | ||||
| Basis of coordinate: | estimated from map |
Time
| Period: | Jurassic | Epoch: | Late/Upper Jurassic |
| 10 m.y. bin: | Jurassic 5 | ||
| Key time interval: | Late/Upper Oxfordian - Early/Lower Kimmeridgian | ||
| Age range of interval: | 157.90000 - 152.20000 m.y. ago |
Stratigraphy
| Formation: | Mariposa |
Lithology and environment
| Primary lithology: | not reported |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | general faunal/floral analysis | ||
| Collectors: | L. D. Clark and N. K. Huber | Collection dates: | 1955 |
Metadata
| Database number: | 192811 | ||
| Authorizer: | J. Marcot | Enterer: | J. Marcot |
| Modifier: | J. Marcot | Research group: | marine invertebrate |
| Created: | 2018-04-19 18:27:16 | Last modified: | 2022-06-10 12:10:53 |
| Access level: | the public | Released: | 2018-04-19 18:27:16 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 65453. | R. W. Imlay. 1961. Late Jurassic ammonites from the western Sierra Nevada, California. United States Geological Survey Professional Paper 374-D:D-1-D-28 [J. Marcot/J. Marcot] |