Columbia (USGS 15307) - Hickman (1980): Priabonian, Oregon
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda
- Eucyclidae
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Bathybembix columbiana
(Dall 1909)
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Gastropoda
- Solariellidae
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Solariella (Machaeroplax) cicca n. sp.
Hickman 1980
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recombined as Solariella (Solariella) cicca | |||||||
Gastropoda
- Opisthobranchia
- Cylichnidae
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Scaphander impunctatus
Hickman 1980
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Gastropoda
- Naticidae
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Natica (Natica) weaveri
Tegland 1933
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Gastropoda
- Neogastropoda
- Siphonaliidae
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Bruclarkia vokesi
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Gastropoda
- Neogastropoda
- Cancellariidae
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Sveltella ? keaseyensis
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Gastropoda
- Neogastropoda
- Conidae
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Conus weltoni
Hickman 1980
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Gastropoda
- Neogastropoda
- Turridae
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Gemmula rockcreekensis
Hickman 1976
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Hickman 1976 | ||||||
Gastropoda
- Cassidae
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Echinophoria dalli
(Dickerson 1917)
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Bivalvia
- Cardiida
- Tellinidae
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Moerella quasimacoma
Hickman 2015
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Hickman 2015 | ||||||
see common names |
Geography
Country: | United States | State/province: | Oregon | County: | Columbia |
Coordinates: | 45.8° North, 123.3° West (view map) | ||||
Paleocoordinates: | 46.1° North, 111.0° West | ||||
Basis of coordinate: | stated in text | ||||
Geographic resolution: | outcrop |
Time
Period: | Paleogene | Epoch: | Eocene |
Stage: | Priabonian | 10 m.y. bin: | Cenozoic 3 |
Key time interval: | Priabonian | ||
Age range of interval: | 37.71000 - 33.90000 m.y. ago |
Stratigraphy
Formation: | Keasey | Member: | Lower | ||
Stratigraphic resolution: | bed | ||||
Stratigraphy comments: Lower member consists of 0-150 m of dark gray, highly micaceous, laminated siltstone and interbedded mudsone. Glaucontitc layers are not uncommon. The Keasey Formation consists of a maximum of 700 m of gray tuffaceous marine siltstone and massive mudstone discontinuously exposed in quaries, road and railway cuts, and along major drainages. The Keasey Fm overlies the late Eocene Cowlitz Fm, and underlies the Pittsburg Bluff Fm. Fm is subdivided into three informal members. |
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: No general geologic data provided |
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: USGS collections are reposited in USNM. Other collections are reposited at Stanford University (SU), UC Berkeley Museum of Paleontology (UCMP), Cal. Acad. Sci. (CAS), Oregon State Dept. of Geology and Mineral Industries (DOGAMI) | |
Taxonomic list comments:Exhaustive for gastropoda |
Metadata
Also known as: | USGS 15307 | ||
Database number: | 39946 | ||
Authorizer: | A. Hendy, M. Uhen | Enterer: | A. Hendy, M. Uhen |
Modifier: | M. Uhen | Research group: | marine invertebrate |
Created: | 2004-06-12 20:47:34 | Last modified: | 2020-03-25 15:24:14 |
Access level: | the public | Released: | 2004-06-12 20:47:34 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
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] |
Secondary references:
10878 | C. J. Hickman. 1976. Bathyal gastropods of the family Turridae in the Early Oligocene Keasey Formation in Oregon, with a review of some deep-water genera in the Paleocene of the Eastern Pacific. Bulletins of American Paleontology 70(292):1-119 [A. Miller/A. Hendy/P. Wagner] | |
57317 | C. S. Hickman. 2015. Paleogene marine bivalves of the deep-water Keasey Formation in Oregon, Part III: The heteroconchs. PaleoBios 32:1-44 [W. Kiessling/M. Krause] |