Fk-1b, Ozashi area, Jusanhama: Anisian, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Cephalopoda
- Pseudorthocerida
- Orthoceratoidea
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| see common names | |||||||
Geography
| Country: | Japan | State/province: | Miyagi |
| Coordinates: | 38.6° North, 141.5° East (view map) | ||
| Paleocoordinates: | 6.4° North, 140.2° East (Wright 2013) | ||
| Basis of coordinate: | stated in text | ||
| Geographic resolution: | outcrop |
Time
| Period: | Triassic | Epoch: | Middle Triassic |
| Stage: | Anisian | 10 m.y. bin: | Triassic 2 |
| Key time interval: | Anisian | ||
| Age range of interval: | 247 - 241.464 m.y. ago |
Stratigraphy
| Formation: | Fukkoshi | ||||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: age of Formation based on presence of ammonoids (Hollandites sp., Balatonites cf. kitakamicus, Gymnites cf. watanabei) | |||||
Lithology and environment
| Primary lithology: | lithified sandstone |
| Secondary lithology: | lithified sandy mudstone |
| Includes fossils? | Y |
| Lithology description: ... that mainly consists of sandstone and alternationg beds of sandstone and mudstone. The deposits intercalate with thick laminated sandy mudstone beds, about 30 meters in total thickness, in its middle part | |
| Environment: | deep-water indet. |
| Geology comments: Fukkoshi Formation represents the submarine fan compley deposited in a deep-water environment | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: Repository: Institute of Geology and Paleontology, Tohoku University (IGPS) | |
Metadata
| Database number: | 214972 | ||
| Authorizer: | B. Seuss | Enterer: | B. Seuss |
| Modifier: | M. Clapham | Research group: | marine invertebrate |
| Created: | 2020-10-26 05:50:52 | Last modified: | 2025-02-27 22:12:56 |
| Access level: | the public | Released: | 2020-10-26 05:50:52 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 74162. | S. Niko and M. Ehiro. 2020. Trematoceras watanabei, a new orthoconic nautiloid species from the Middle Triassic Fukkoshi Formation, Miyagi Prefecture, Northeast Japan. Bulletin of the Tohoku University Museum 19:1-6 [B. Seuss/B. Seuss/M. Clapham] |