Mitunovskaya Suite - Mutnaya River, Smirnykhov District, Sakhalin: Late/Upper Oligocene, Russian Federation
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Bivalvia
- Pectinida
- Pectinidae
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Delectopecten peckhami
(Gabb 1869)
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Bivalvia
- Nuculanida
- Yoldiidae
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Yoldia (Yoldia) caudata
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Bivalvia
- Nuculanida
- Malletiidae
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Malletia (Malletia) onorensis
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Bivalvia
- Solemyida
- Solemyidae
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Acharax johnsoni
(Dall 1891)
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| see common names | |||||||
Geography
| Country: | Russian Federation |
| Coordinates: | 49.8° North, 142.8° East (view map) |
| Paleocoordinates: | 51.0° North, 140.3° East |
| Basis of coordinate: | based on nearby landmark |
| Geographic resolution: | local area |
Time
| Period: | Paleogene | Epoch: | Oligocene |
| Stage: | Chattian | 10 m.y. bin: | Cenozoic 4 |
| Key time interval: | Late/Upper Oligocene | ||
| Age range of interval: | 27.82000 - 23.03000 m.y. ago |
Stratigraphy
| Geological group: | Daekhuriin | Formation: | Mutnovskaya | ||
| Stratigraphic resolution: | formation | ||||
| Stratigraphy comments: STRATIGRAPHIC RELATIONS: From Mutnovskaya suite of the "Daekhuriin" horizon, which lies between the "Machigar" (Early Oligocene) and "Uynin" (Early Miocene) horizons. THICKNESS: Total thickness of unit is 700 m. AGE: Late Oligocene, on the basis of classification into the "Daekhuriin" horizon. STRATIGRAPHIC POSITION: Composite checklist for formation in this area. | |||||
Lithology and environment
| Primary lithology: | lithified argillaceous,silty mudstone |
| Includes fossils? | Y |
| Includes fossils? | Y |
| Lithology description: SPECIFIC LITHOLOGY: Siliceous argillites, siltstones, with rare interbeds of sandstone, intensively limely, marly, and siliceous concretions. LITHIFICATION: Lithified, assumed on the basis of age and facies. | |
| Environment: | offshore |
| Geology comments: ENVIRONMENT: Not stated in text; assumed to be cool-water offshore siliciclastic setting on the basis of faunal composition. | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | biostratigraphic analysis |
| Collection method comments: COLLECTOR: Unknown, presumably Pleshakov (c. 1937). REPOSITORY: Unknown repository. | |
| Taxonomic list comments:COVERAGE: Comprises only characteristic bivalvia; no other groups listed. NOMENCLATURE: Not an authoritative publication, but nomenclature revised by specialists, with species and subgenus-level identifications. | |
Metadata
| Database number: | 70521 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2007-03-27 09:38:33 | Last modified: | 2013-11-25 13:37:23 |
| Access level: | authorizer only | Released: | 2007-03-27 09:38:30 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 23628. | A. I. Kafanov and K. Ogasawara. 2003. Neogene and Paleogene Molluscan (Bivalvia) Cenozones of Sakhalin and Kurile Islands. Science Reports, Institute of Geoscience, University of Tsukuba 24:45-79 [A. Hendy/A. Hendy] |