KF94, Minamizawa Valley, Kamiyasse Area: Wordian, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Rhynchonellata
- Orthida
- Rhipidomellidae
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| Tazawa 2016 | ||||||||||
| (2 measurements) | ||||||||||
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Rhynchonellata
- Spiriferida
- Elythidae
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| Tazawa and Kaneko 2016 | ||||||||||
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Strophomenata
- Productida
- Rugosochonetidae
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| (5 measurements) | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Japan |
| Coordinates: | 39.0° North, 141.5° East (view map) |
| Paleocoordinates: | 7.0° North, 137.6° East (Wright 2013) |
| Basis of coordinate: | estimated from map |
| Geographic resolution: | small collection |
Time
| Period: | Permian | Epoch: | Guadalupian |
| Stage: | Wordian | 10 m.y. bin: | Permian 3 |
| Key time interval: | Wordian | ||
| Age range of interval: | 266.9 - 264.28 m.y. ago |
Stratigraphy
| Formation: | Kamiyasse | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Lower part of the Kamiyasse Formation. Wordian based on ammonoids. | |||||
Lithology and environment
| Primary lithology: | gray lithified argillaceous "limestone" |
| Lithology description: Sandstone and impure argillaceous-arenaceous limestone | |
| Environment: | carbonate indet. |
Taphonomy
| Modes of preservation: | body,mold/impression |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 100322 | ||
| Authorizer: | M. Clapham | Enterer: | M. Clapham |
| Modifier: | M. Clapham | Research group: | marine invertebrate |
| Created: | 2010-12-08 03:23:40 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2010-12-08 03:23:40 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 33423. | G. A. Afanasjeva and J. Tazawa. 2007. A new large chonetid (Brachiopoda) from the Middle Permian of the southern Kitakami Mountains, northeast Japan. Paleontological Journal 41:424-428 [M. Clapham/M. Clapham] |
Secondary references:
| 58817 | J. I. Tazawa. 2016. Three new brachiopod species from the middle Permian (Wordian) of the South Kitakami Belt, northeastern Japan. Paleontological Research 20:80-89 [M. Clapham/M. Clapham] | |
| 57633 | J. I. Tazawa and N. Kaneko. 2016. Two Species of Permophricodothyris (Reticularioidea, Brachiopoda) from the Middle Permian, South Kitakami Belt, Japan. Paleontological Research 20:24-30 [M. Clapham/M. Clapham] |