Kumaoisawa, Mikasa City: Late Turonian - Coniacian, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Chondrichthyes
- Hexanchiformes
- Chlamydoselachidae
|
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| 1 specimen | ||||||||||
| MCM.A896 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Japan |
| Coordinates: | 43.3° North, 142.0° East (view map) |
| Paleocoordinates: | 51.1° North, 141.3° East (Wright 2013) |
| Basis of coordinate: | based on political unit |
| Geographic resolution: | outcrop |
Time
| Period: | Cretaceous | Epoch: | Late Cretaceous |
| Stage: | Turonian - Coniacian | 10 m.y. bin: | Cretaceous 6 |
| Key time interval: | Late Turonian - Coniacian | ||
| Age range of interval: | 93.9 - 85.7 m.y. ago |
Stratigraphy
| Geological group: | Yezo | ||||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: Uf-Uh Formations of the Upper Yezo Group, upper Turonian to Coniacian, on the basis of Inoceramus uwajimensis, Anagaudryceras limatum, and Neophylloceras subramosum found in the formation. | |||||
Lithology and environment
| Primary lithology: | green lithified sandy mudstone |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: Repository: Mikasa City Museum (MCM) | |
Metadata
| Database number: | 278450 | ||
| Authorizer: | M. Clapham | Enterer: | M. Clapham | Research group: | vertebrate |
| Created: | 2026-03-23 17:24:54 | Last modified: | 2026-03-23 17:24:54 |
| Access level: | the public | Released: | 0000-00-00 00:00:00 |
| Creative Commons license: |
Reference information
Primary reference:
| 94394. | M. Goto and The Japanese Club for Fossil Shark Tooth Research. 2004. Tooth remains of chlamydoselachian sharks from Japan and their phylogeny and paleoecology. Earth Science (Chikyu Kagaku) 58:361-374 [M. Clapham/M. Clapham] |