Kasiwado, Kamo-gun, Izu Province: Piacenzian, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Rhynchonellata
- Terebratulida
- Frenulinidae
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Jolonica (Kamoica) iduensis
Hatai 1936
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Rhynchonellata
- Terebratulida
- Dallinidae
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Dallina raphaelis
(Dall 1870)
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Rhynchonellata
- Terebratulida
- Cancellothyrididae
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Terebratulina iduensis
Hatai 1936
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| see common names | |||||||
Geography
| Country: | Japan |
| Coordinates: | 34.7° North, 139.0° East (view map) |
| Paleocoordinates: | 35.2° North, 138.4° East |
| Basis of coordinate: | based on nearby landmark |
| Geographic resolution: | outcrop |
Time
| Period: | Neogene | Epoch: | Pliocene |
| Stage: | Piacenzian | 10 m.y. bin: | Cenozoic 6 |
| Key time interval: | Piacenzian | ||
| Age range of interval: | 3.60000 - 2.58000 m.y. ago |
Stratigraphy
| Geological group: | Shirahama | Formation: | Harada | ||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: The nannofossil assemblage from the Harada Formation in the upper part of this group is characterized by the occurrence of Pseudoemiliania cf. lacunosa, without Reticulofenestra pseudoumbilica and Gephyrocapsa spp. (Okada, 1987). According to Blow (1969) and Okada and Bukry (1980), this group belongs to zones N19 and CN12 (early Piacenzian), according to Akimoto et al. (2012). Utagawa et al. (2015) dated andesite in the underlying Suzaki Formation at 3.62 +/- 0.16 Ma by K-Ar. | |||||
Lithology and environment
| Primary lithology: | "cross stratification",tuffaceous poorly lithified calcareous sandstone |
| Environment: | carbonate indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 190825 | ||
| Authorizer: | M. Clapham | Enterer: | M. Clapham | Research group: | marine invertebrate |
| Created: | 2017-12-18 23:28:31 | Last modified: | 2017-12-18 23:28:31 |
| Access level: | the public | Released: | 2017-12-18 23:28:31 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 64049. | K. M. Hatai. 1940. The Cenozoic Brachiopoda of Japan. Science Reports, Tohoku Imperial University, Series 2 20:1-413 [M. Clapham/M. Clapham] |