Sample #92LM2 - Slater Creek Member (Oregon): Ypresian, Oregon
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda
- Strombidae
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Ectinochilus sp.
Cossmann 1889
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synonym of Rimella | |||||||
Gastropoda
- Neogastropoda
- Fasciolariidae
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Fusinus sp.
Rafinesque 1815
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Gastropoda
- Naticidae
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? Natica sp.
Scopoli 1777
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Gastropoda
- Opisthobranchia
- Retusidae
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Cylichnina tantilla
(Anderson and Hanna 1925)
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Bivalvia
- Ostreida
- Ostreidae
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Ostrea sp.
Linnaeus 1758
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Bivalvia
- Mytilida
- Mytilidae
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Brachidontes cowlitzensis
(Weaver and Palmer 1922)
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Bivalvia
- Cardiida
- Veneridae
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Microcallista conradiana
(Gabb 1864)
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recombined as Microcallista (Costacallista) conradiana | |||||||
Pitar sp.
Römer 1857
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Bivalvia
- Cardiida
- Cardiidae
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Acanthocardia brewerii
(Gabb 1864)
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recombined as Schedocardia brewerii | |||||||
Bivalvia
- Nuculida
- Nuculidae
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Acila decisa
(Conrad 1855)
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Bivalvia
- Nuculanida
- Yoldiidae
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Yoldia sp.
Möller 1842
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Scaphopoda
- Dentaliida
- Dentaliidae
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Dentalium sp.
Linnaeus 1758
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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 Mid-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: | transition zone/lower shoreface |
Geology comments: Deposition in shallow water neritic conditions; 25-35 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 #2 | ||
Database number: | 52266 | ||
Authorizer: | A. Hendy | Enterer: | A. Hendy |
Modifier: | A. Hendy | Research group: | marine invertebrate |
Created: | 2005-08-02 15:56:47 | Last modified: | 2013-11-25 13:37:23 |
Access level: | the public | Released: | 2005-08-02 15:56:46 |
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] |