USGS Cenozoic M8036, Korovin Island: Bartonian, Alaska
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Bivalvia
- Pholadida
- Teredinidae
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? Teredo sp.
Linnaeus 1758
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Bivalvia
- Cardiida
- Veneridae
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Microcallista (Costacallista) conradiana
(Gabb 1864)
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Gastropoda
- Turritellidae
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Turritella uvasana
Conrad 1855
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| Subspecies stewarti | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Alaska | County: | Aleutians East |
| Coordinates: | 55.4° North, 160.2° West (view map) | ||||
| Paleocoordinates: | 61.1° North, 151.2° West | ||||
| Basis of coordinate: | estimated from map |
Time
| Period: | Paleogene | Epoch: | Eocene |
| Stage: | Bartonian | 10 m.y. bin: | Cenozoic 3 |
| Key time interval: | Bartonian | ||
| Age range of interval: | 41.20000 - 37.71000 m.y. ago |
Stratigraphy
| Formation: | Tolstoi | ||||
| Stratigraphy comments: “Late middle Eocene” |
Lithology and environment
| Primary lithology: | siltstone |
| Secondary lithology: | sandstone |
| Lithology description: “...dominant Tolstoi lithologies are dark-colored siltstones with interbedded volcaniclastic sandstones and conglomerates, volcanic breccia, flows and sills ...” | |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | cast,mold/impression |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | general faunal/floral analysis |
Metadata
| Also known as: | UCMP IP23646 | ||
| Database number: | 194392 | ||
| Authorizer: | P. Holroyd | Enterer: | P. Holroyd |
| Modifier: | M. Uhen | Research group: | marine invertebrate |
| Created: | 2018-06-19 14:40:05 | Last modified: | 2019-06-21 17:55:47 |
| Access level: | the public | Released: | 2018-06-19 14:40:05 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 66020. | L. Marincovich. 1988. Late middle Eocene mollusks of the Tolstoi Formation, Alaska Peninsula, Alaska, and correlations with faunas from California to the Far-eastern U.S.S.R. In M. V. Filewicz and R.L. Squires (eds.), SEPM West Coast Paleogene Symposium 58:265-281 [P. Holroyd/P. Holroyd] |