Loc. Y5203 - River Hakkinzawa, Oyubari: Late Turonian, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Cephalopoda
- Nautilida
- Nautilidae
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| (1 measurement) | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Japan | County: | Hokkaido |
| Coordinates: | 43.0° North, 142.0° East (view map) | ||
| Paleocoordinates: | 50.6° North, 142.3° East (Wright 2013) | ||
| Basis of coordinate: | stated in text | ||
| Geographic resolution: | outcrop |
Time
| Period: | Cretaceous | Epoch: | Late Cretaceous |
| Stage: | Turonian | 10 m.y. bin: | Cretaceous 6 |
| Key time interval: | Late Turonian | ||
| Age range of interval: | 93.9 - 89.8 m.y. ago |
Stratigraphy
| Geological group: | Yezo | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: STRATIGRAPHIC RELATIONS: From unnamed lithostratigraphic unit within the middle Yezo Gp, which unconformably overliesthe late Mesozoic Sorachi Gp, and is overlain by Cenozoic strata. AGE: Late Turonian, on the basis of ammonite and inoceramid biostratigraphy; Romaniceras deverianum; originally entered as Middle Turonian. STRATIGRAPHIC POSITION: From near top of regional section. | |||||
Lithology and environment
| Primary lithology: | lithified mudstone |
| Includes fossils? | Y |
| Lithology description: SPECIFIC LITHOLOGY: mudstone. LITHIFICATION: Not stated in text. | |
| Environment: | marine indet. |
| Geology comments: ENVIRONMENT: Marine siliciclastic setting. | |
Taphonomy
| Modes of preservation: | cast,mold/impression |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: COLLECTOR: M. Yamashita. REPOSITORY: Dept. of Geology, Kyushu University. | |
Metadata
| Database number: | 166213 | ||
| Authorizer: | M. Clapham | Enterer: | M. Clapham | Research group: | marine invertebrate |
| Created: | 2015-02-05 21:20:45 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2015-02-05 21:20:45 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 54306. | T. Matsumoto. 1983. Cretaceous nautiloids from Hokkaido - I. Transactions and Proceedings of the Paleontological Society of Japan, N.S. 129:9-25 [M. Clapham/M. Clapham] |