Konoha Fossil Museum quarry: Chibanian, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Insecta
- Diptera
- Sciaridae
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| 2 specimens | ||||||||||
| EES-ty0001a, b | ||||||||||
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Insecta
- Hemiptera
- Psyllidae
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Cacopsylla cf. abieti
(Kuwayama 1907)
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Horiguchi et al. 2020 | 1 specimen | ||||||||
| SFMA 0683 (1 measurement) | ||||||||||
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Insecta
- Hemiptera
- Cicadidae
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Terpnosia nigricosta
(Motschulsky 1866)
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Nakano et al. 2018 | 1 specimen | ||||||||
| SFMA0379 | ||||||||||
| Horiguchi et al. 2020 | 1 specimen | |||||||||
| KYFSI253 (1 measurement) | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Japan |
| Coordinates: | 37.0° North, 139.8° East (view map) |
| Paleocoordinates: | |
| Basis of coordinate: | stated in text |
| Geographic resolution: | outcrop |
Time
| Period: | Quaternary | Epoch: | Pleistocene |
| Stage: | Chibanian | 10 m.y. bin: | Cenozoic 6 |
| Key time interval: | Chibanian | ||
| Age range of interval: | 0.774 - 0.129 m.y. ago |
Stratigraphy
| Formation: | Miyajima | ||||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: Assigned to the Middle Pleistocene Shiobara Group. The age of deposits was determined from the correlation of fossil flora (Onoe, 1989) and tephrochronology (Suzuki et al., 1998). | |||||
Lithology and environment
| Primary lithology: | planar lamination,diatomaceous lithified mudstone | ||
| Lithology description: Diatomaceous laminated mudstones | |||
| Environment: | crater lake | Tectonic setting: | volcanic basin |
| Geology comments: Distributed in the center of the basin, shows deep-water facies of the paleo-Shiobara Lake. Shiobara Basin is a caldera basin located on the northern slope of the Quaternary Takahara Volcano situated along the Hoki River. The caldera had a lake (paleo-Shiobara Lake) | |||
Taphonomy
| Modes of preservation: | adpression |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: Repository: Graduate School of Life and Environmental Sciences, University of Tsukuba; Shiobara Fossil Museum; Konoha Fossils Museum in Nasushiobara, Tochigi | |
Metadata
| Database number: | 186848 | ||
| Authorizer: | M. Clapham | Enterer: | M. Clapham |
| Modifier: | M. Clapham | Research group: | paleoentomology |
| Created: | 2017-07-05 18:32:23 | Last modified: | 2026-03-01 12:09:53 |
| Access level: | the public | Released: | 2017-07-05 18:32:23 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 62656. | Y. Takahashi, M. Sutou, and S. Yamamoto. 2017. The compression mating fossil of sciarid fly (Diptera: Sciaridae) from Shiobara, Tochigi Prefecture, Japan. Paleontological Research 21:288-292 [M. Clapham/M. Clapham] |
Secondary references:
| 94248 | H. Aiba and M. Hayashi. 2026. Large cicada fossil (Cicadidae, Cicadinae, Tacuini) from the Middle Pleistocene Shiobara Group, Nasushiobara, Tochigi, Japan. Paleontological Research 30:1-8 [M. Clapham/M. Clapham] | |
| 74220 | A. Horiguchi, H. Aiba, Y. Takahashi, H. Inoue, and T. Sato. 2020. First fossil record of a jumping plant-louse (Insecta, Hemiptera, Psylloidea) from Japan. PalZ 94:455-461 [M. Clapham/M. Clapham/M. Clapham] | |
| 67378 | E. Nakano, Y. Takahashi, H. Aiba and T. Sato. 2018. Cicada fossil from Nasushiobara city, Tochigi Prefecture. Bulletin of Tokyo Gakugei University, Division of Natural Sciences 70:55-61 [M. Clapham/M. Clapham] |