USGS Cenozoic 2741, Tillamook Bay: Burdigalian, Oregon
collected by J.S. Diller 1895
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: | Tillamook |
| Coordinates: | 45.5° North, 123.9° West (view map) | ||||
| Paleocoordinates: | 45.3° North, 117.9° 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: | Angora Peak | ||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: Astoria Formation in coastal outcrops spans the late Early to early Middle Miocene, based on magnetostratigraphy (Prothero et al., 2001), but Aturia likely occurs in the lower part. | |||||
Lithology and environment
| Primary lithology: | concretionary,gray poorly lithified sandstone |
| Lithology description: Gray sandstone, generally so soft as to be readily crushed in the hand. Shells throughout, but most abundant in the concretions. | |
| Environment: | shoreface |
| Geology comments: Likely sandstone type I of Cooper, representing shoreface sandstones | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis | ||
| Museum repositories: | USNM | ||
| Collectors: | J.S. Diller | Collection dates: | 1895 |
Metadata
| Database number: | 180449 | ||
| Authorizer: | M. Clapham | Enterer: | M. Clapham |
| Modifier: | M. Clapham | Research group: | marine invertebrate |
| Created: | 2016-07-16 22:16:47 | Last modified: | 2019-07-23 23:31:41 |
| Access level: | the public | Released: | 2016-07-16 22:16:47 |
| 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] |