Sample #92LM1 - Slater Creek Member (Oregon): Ypresian, Oregon
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia
- Cardiida
- Cardiidae
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Nemocardium linteum
(Conrad 1855)
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recombined as Nemocardium (Nemocardium) linteum | ||||||||||
Bivalvia
- Ostreida
- Ostreidae
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Ostrea sp.
Linnaeus 1758
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Bivalvia
- Mytilida
- Mytilidae
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? Brachidontes sp.
Swainson 1840
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Gastropoda
- Opisthobranchia
- Retusidae
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Cylichnina cf. tantilla
(Anderson and Hanna 1925)
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Gastropoda
- Naticidae
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Naticidae indet.
Guilding 1834
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Gastropoda
- Turritellidae
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Turritella uvasana
Conrad 1855
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Subspecies: Turritella uvasana hendoni | ||||||||||
see common names |
Geography
Country: | United States | State/province: | Oregon | County: | Douglas |
Coordinates: | 43.3° North, 123.1° West (view map) | ||||
Paleocoordinates: | 47.3° North, 104.1° West | ||||
Basis of coordinate: | stated in text | ||||
Geographic resolution: | outcrop |
Time
Period: | Paleogene | Epoch: | Eocene |
Stage: | Ypresian | 10 m.y. bin: | Cenozoic 2 |
Key time interval: | Ypresian | ||
Age range of interval: | 56.00000 - 47.80000 m.y. ago |
Stratigraphy
Geological group: | Umpqua | Formation: | Bushnell Rock | Member: | Slater Creek |
Local section: | Freer Bridge | ||||
Regional section: | Tyee | ||||
Stratigraphic resolution: | bed | ||||
Stratigraphy comments: From Slater Creek Member of the Bushnell Rock Formation, Umpqua Group. This is equivalent to strata formely referred to as Bushnell Rock Member and Umpqua Formation and time equivalent to Lookingglass Formation. The Slater Creek Member unconformably overlies the Siletz RIver Volcanics and underlies the Tenmile Formation. Macrofossil biostratigraphy suggests an Early Paleocene-Late Eocene age, but the member is more precisely dated as Penutian (C24n/CP10)=Ypresian. |
Lithology and environment
Primary lithology: | fine poorly lithified sandstone |
Includes fossils? | Y |
Lithology description: Thick-bedded, fine-grained sandstone facies. Presumed to be at least poorly lithified given facies, local tectonics and thickness of overlying strata - but not stated in text. | |
Environment: | offshore |
Geology comments: Deposition in shallow water neritic conditions; 20-185 m. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Collection methods and comments
Collection methods: | selective quarrying,field collection |
Reason for describing collection: | biostratigraphic analysis |
Collection method comments: Collected by L. Marincovich (1992). Collections presumably reposited at USGS Menlo Park or USNM. | |
Taxonomic list comments:Presumably identified by L. Marincovich |
Metadata
Also known as: | Record #1 | ||
Database number: | 52265 | ||
Authorizer: | A. Hendy | Enterer: | A. Hendy |
Modifier: | A. Hendy | Research group: | marine invertebrate |
Created: | 2005-08-02 15:55:30 | Last modified: | 2013-11-25 13:37:23 |
Access level: | the public | Released: | 2005-08-02 15:55:30 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
14064. | R. E. Wells, A. S. Jayko, A.R. Niem, G. Black, T. Wiley, E. Baldwin, K. Molenaar, K.L. Wheeler, C.B. DuRoss and R.W. Givler. 2000. Geologic Map and Database of the Roseburg 30 x 60' Quadrangle, Douglas and Coos Counties, Oregon. United States Geological Survey Open-File Report 00-367 [A. Miller/A. Hendy/A. Hendy] |