Probably near Mount Poso oil field: Burdigalian, California
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Cephalopoda
- Nautilida
- Aturiidae
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Aturia angustata
(Conrad 1849)
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| see common names | |||||||
Geography
| Country: | United States | State/province: | California | County: | Kern |
| Coordinates: | 35.6° North, 119.0° West (view map) | ||||
| Paleocoordinates: | 39.2° North, 109.9° West (Wright 2013) | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Neogene | Epoch: | Miocene |
| Stage: | Burdigalian | 10 m.y. bin: | Cenozoic 5 |
| Key time interval: | Burdigalian | ||
| Age range of interval: | 20.45 - 15.98 m.y. ago |
Stratigraphy
| Formation: | Olcese | ||||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: "Miocene Temblor Formation" - assigned here to the latest early Miocene Olcese Sand Aturia previously reported from that unit (Schenck, 1931). A late Early Miocene age (ca. 16–18 Ma) for this horizon is based on molluscan biochronology (Addicott 1970), biostratigraphic correlation (Savage and Barnes 1972), benthic foraminiferal biostratigraphy (Olson 1990), and strontium isotope data (Olson 1988). The published strontium isotope dates of Olson (1988) yield a mean age of 16.7 Ma near the top of the upper Olcese Sand and are compatible with benthic foraminifera, which suggest an upper Relizian age. | |||||
Lithology and environment
| Primary lithology: | lithified "siliciclastic" |
| Environment: | coastal indet. |
Taphonomy
| Modes of preservation: | mold/impression |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | UCMP |
Metadata
| Database number: | 180408 | ||
| Authorizer: | M. Clapham | Enterer: | M. Clapham |
| Modifier: | M. Clapham | Research group: | marine invertebrate |
| Created: | 2016-07-16 00:04:12 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2016-07-16 00:04:12 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 59868. | A. K. Miller and H. R. Downs. 1950. Tertiary nautiloids of the Americas: supplement. Journal of Paleontology 24:1-18 [M. Clapham/M. Clapham] |