USGS Cenozoic 18905, Yaquina Head: Burdigalian, Oregon
collected by M.P. James 1953
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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| original and current combination Nautilus angustatus | |||||||
| see common names | |||||||
Geography
| Country: | United States | State/province: | Oregon | County: | Lincoln |
| Coordinates: | 44.7° North, 124.1° West (view map) | ||||
| Paleocoordinates: | 44.5° North, 118.0° West | ||||
| 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: | 20.44000 - 15.98000 m.y. ago |
Stratigraphy
| Formation: | Astoria | Member: | Newport Sandstone | ||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: Section south of Yaquina Head assigned to late Early Miocene based on magnetostratigraphy (Prothero et al., 2001). | |||||
Lithology and environment
| Primary lithology: | poorly lithified "shale" |
| Environment: | transition zone/lower shoreface |
| Geology comments: Dominated by middle to outer shelf siliciclastic sandy-mud facies. Estimated absolute water depths are ~25 m based on the molluscan fauna and <150 m based on the benthic foraminifera fauna. Hummocky cross-stratification preserved in tuff beds and in mud capped sandy beds are found at stratigraphic levels throughout the section, further supporting deposition in shelf water depths, specifically between the lower shoreface and storm wave base. | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis | ||
| Museum repositories: | USNM | ||
| Collectors: | M.P. James | Collection dates: | 1953 |
Metadata
| Database number: | 180451 | ||
| Authorizer: | M. Clapham | Enterer: | M. Clapham |
| Modifier: | M. Clapham | Research group: | marine invertebrate |
| Created: | 2016-07-16 22:31:19 | Last modified: | 2019-07-23 22:19:22 |
| Access level: | the public | Released: | 2016-07-16 22:31:19 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 10616. | E. J. Moore. 1963. Miocene marine mollusks from the Astoria Formation in Oregon. United States Geological Survey Professional Paper 419 [A. Miller/A. Hendy/A. Hendy] |