KY1, Minokerazawa, Kamiyasse: Sakmarian, Japan
collected by T. Shintani
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Rhynchonellata
- Athyridida
- Neoretziidae
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| Tazawa and Shintani 2014 | ||||||||||
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Strophomenata
- Orthotetida
- Meekellidae
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Orthothetina sp.
Schellwien 1900
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Tazawa and Shintani 2014 | |||||||||
| (1 measurement) | ||||||||||
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Orthothetina curvata
Ustritsky 1960
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Tazawa and Shintani 2014 | |||||||||
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Strophomenata
- Orthotetida
- Derbyiidae
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| Tazawa and Shintani 2014 | ||||||||||
| Tazawa and Shintani 2014 | ||||||||||
| (2 measurements) | ||||||||||
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Strophomenata
- Productida
- Echinoconchidae
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| Tazawa and Shintani 2014 | ||||||||||
| (1 measurement) | ||||||||||
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Schwagerinidae
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? Dutkevitchia hindukushiensis
(Leven 1971)
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| (1 measurement) | ||||||||||
| (1 measurement) | ||||||||||
| (1 measurement) | ||||||||||
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Pseudofusulina cf. callosa
Rauser-Chernousova 1940
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| (1 measurement) | ||||||||||
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Pseudochusenella ex gr. cushmani
(Chen 1934)
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| (1 measurement) | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Japan |
| Coordinates: | 39.0° North, 141.5° East (view map) |
| Paleocoordinates: | 15.0° North, 144.0° East (Wright 2013) |
| Basis of coordinate: | stated in text |
| Geographic resolution: | small collection |
Time
| Period: | Permian | Epoch: | Cisuralian |
| Stage: | Sakmarian | 10 m.y. bin: | Permian 1 |
| Key time interval: | Sakmarian | ||
| Age range of interval: | 293.52 - 290.1 m.y. ago |
Stratigraphy
| Formation: | Sakamotozawa | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: About 31 m above the base of the Sakamotozawa Formation. | |||||
Lithology and environment
| Primary lithology: | fine,shelly/skeletal lithified calcareous sandstone |
| Lithology description: The sandstone is calcareous and fine- to medium-grained, but becomes coarse-grained in some parts. It contains several layers, which yield a number of granular (sometimes fine pebbly) calcareous debris such as brachiopods, bryozoans, crinoids, and fusulines. They are usually weathered and dissolved, showing porous occurrence on the surface. Sand grains are mainly of volcaniclastic, lithic, and calcareous fragments and subangular quartz particles. | |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body,mold/impression |
| Size of fossils: | microfossils |
Collection methods and comments
| Collection methods: | peel or thin section |
| Reason for describing collection: | taxonomic analysis |
| Collectors: | T. Shintani |
| Collection method comments: Repository: Department of Geology, Faculty of Science, Niigata University, with prefix NU-F (fusulinids) or NU-B (brachiopods). | |
Metadata
| Database number: | 129063 | ||
| Authorizer: | M. Clapham | Enterer: | M. Clapham |
| Modifier: | M. Clapham | Research group: | marine invertebrate,micropaleontology |
| Created: | 2012-06-20 10:48:12 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2012-06-20 10:48:12 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 42060. | K. Ueno, T. Shintani, and J. I. Tazawa. 2011. A fusuline fauna from the basal part of the Sakamotozawa Formation in the Kamiyasse area, South Kitakami Belt, Northeast Japan. Science Reports, Niigata University (Geology) 26:23-41 [M. Clapham/M. Clapham] |
Secondary references:
| 51894 | J. I. Tazawa and T. Shintani. 2014. Early Permian (Sakmarian) brachiopods from Kamiyasse, South Kitakami Belt, northeast Japan. Science Reports, Niigata University (Geology) 29:13-41 [M. Clapham/M. Clapham] |