SU Loc. N.P.253, Willapa River N of Holcomb: Priabonian - Rupelian, Washington
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Malacostraca
- Decapoda
- Lyreididae
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Ranidina willapensis
Rathbun 1926
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| recombined as Macroacaena willapensis | |||||||
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Malacostraca
- Decapoda
- Zanthopsidae
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Zanthopsis vulgaris
Rathbun 1926
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Malacostraca
- Decapoda
- Carcinidae
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Portunites alaskensis
Rathbun 1926
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Gastropoda
- Eucyclidae
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Bathybembix columbiana
(Dall 1909)
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Hickman 1980 | ||||||
| see common names | |||||||
Geography
| Country: | United States | State/province: | Washington | County: | Pacific |
| Coordinates: | 46.6° North, 123.6° West (view map) | ||||
| Paleocoordinates: | 46.5° North, 112.2° West | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Paleogene |
| Key time interval: | Priabonian - Rupelian |
| Age range of interval: | 37.71000 - 27.82000 m.y. ago |
Stratigraphy
| Formation: | Lincoln Creek | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: "Keasey equivalent" beds, likely the Lincoln Creek Formation. Given the location, it is probably from the lower part of the stratigraphy and of late Eocene or perhaps early Oligocene age. | |||||
Lithology and environment
| Primary lithology: | planar lamination,micaceous,gray siltstone |
| Secondary lithology: | mudstone |
| Includes fossils? | Y |
| Includes fossils? | Y |
| Lithology description: Dark gray, highly micaceous, laminated siltstone and interbedded mudstone | |
| Environment: | deep-water indet. |
| Geology comments: The molluscan fossils from this locality were regarded as being a “deep-water” assemblage by Hickman (1984), but estimates of water depth vary from approximately 20 to 100 m (Armentrout 1973), to more than 200 m (Hickman 1980). The section deepens upward and if this locality is near the cold-seep deposits it likely represents bathyal/slope depths. | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | selective quarrying,field collection |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | USNM |
| Collection method comments: Collections are reposited at Stanford University (SU) Northern Pacific collections | |
| Taxonomic list comments:Exhaustive for gastropoda | |
Metadata
| Database number: | 39961 | ||
| Authorizer: | A. Hendy, M. Clapham | Enterer: | A. Hendy, M. Clapham |
| Modifier: | M. Clapham | Research group: | marine invertebrate |
| Created: | 2004-06-12 22:28:14 | Last modified: | 2019-08-18 19:29:09 |
| Access level: | the public | Released: | 2004-06-12 22:28:14 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 44425. | decapod,fossil record | M. J. Rathbun. 1926. The fossil stalk-eyed Crustacea of the Pacific slope of North America. United States National Museum Bulletin 138:1-155 [C. Schweitzer/S. Yost/M. Uhen] |
Secondary references:
| 490 | C. S. Hickman. 1980. Paleogene Marine Gastropods of the Keasey Formation in Oregon. Bulletins of American Paleontology 78(310):1-112 [L. Ivany/E. Kowalski/M. Uhen] |