Okawachi: Norian, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Bivalvia
- Trigoniida
- Myophoriidae
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Gruenewaldia decussata
(Munster 1838)
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Bivalvia
- Trigoniida
- Trigoniidae
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Bivalvia
- Cardiida
- Palaeocarditidae
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Palaeocardita sp.
Conrad 1867
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| see common names | |||||||
Geography
| Country: | Japan |
| Coordinates: | 32.3° North, 130.8° East (view map) |
| Paleocoordinates: | 39.6° North, 142.5° East (Wright 2013) |
| Basis of coordinate: | based on nearby landmark |
| Geographic resolution: | outcrop |
Time
| Period: | Triassic | Epoch: | Late Triassic |
| Stage: | Norian | 10 m.y. bin: | Triassic 4 |
| Key time interval: | Norian | ||
| Age range of interval: | 227.3 - 205.7 m.y. ago |
Stratigraphy
| Stratigraphic resolution: | group of beds |
Lithology and environment
| Primary lithology: | lithified "limestone" |
| Lithology description: muddy limestones | |
| Environment: | carbonate indet. |
Taphonomy
| Modes of preservation: | cast |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | field collection,survey of museum collection |
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 98643 | ||
| Authorizer: | W. Kiessling | Enterer: | U. Merkel | Research group: | marine invertebrate |
| Created: | 2010-10-15 04:50:52 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2010-10-15 04:50:52 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 34033. | M. Tamura and E. Nishimura. 1994. Description of Upper Triassic Kyushutrigonia hachibarensis, new genus and new species with revision of trigonian species from Sambosan Terrane, Japan. Memoirs of the Faculty of Education Kumamoto University, Natural science 43:15-23 [W. Kiessling/U. Merkel] |