Omoto, Kitsuki City, Oita Prefecture: Chibanian, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Insecta
- Lepidoptera
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| 1 specimen | ||||||||||
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Insecta
- Coleoptera
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| 119 specimens | ||||||||||
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Insecta
- Coleoptera
- Elateridae
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| 1 specimen | ||||||||||
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Insecta
- Coleoptera
- Scarabaeidae
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| 5 specimens | ||||||||||
| 1 specimen | ||||||||||
| 1 specimen | ||||||||||
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Insecta
- Coleoptera
- Hydrophilidae
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| 8 specimens | ||||||||||
| 12 specimens | ||||||||||
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Hydrochara libera
(Sharp 1884)
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1 specimen | |||||||||
| (1 measurement) | ||||||||||
| 4 specimens | ||||||||||
| 4 specimens | ||||||||||
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Insecta
- Coleoptera
- Staphylinidae
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| 2 specimens | ||||||||||
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Insecta
- Coleoptera
- Chrysomelidae
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| 1 specimen | ||||||||||
| 120 specimens | ||||||||||
| 6 specimens | ||||||||||
| 4 specimens | ||||||||||
| (1 measurement) | ||||||||||
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Donacia flemora
Goecke 1944
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4 specimens | |||||||||
| (1 measurement) | ||||||||||
| 2 specimens | ||||||||||
| (1 measurement) | ||||||||||
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Donacia (Cyphogaster) sp.
Goecke 1934
|
1 specimen | |||||||||
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Plateumaris sp.
Thomson 1859
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421 specimens | |||||||||
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Insecta
- Coleoptera
- Curculionidae
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| 1 specimen | ||||||||||
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Insecta
- Coleoptera
- Carabidae
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| 40 specimens | ||||||||||
| 3 specimens | ||||||||||
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Oodini indet.
Laferte-Senectere 1851
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5 specimens | |||||||||
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Synuchus sp.
Gyllenhal 1810
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1 specimen | |||||||||
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Carabus (Apotomopterus) maacki
(Morawitz 1862)
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1 specimen | |||||||||
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Carabus (Ohomopterus) sp.
Reitter 1896
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3 specimens | |||||||||
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Carabus (Ohomopterus) japonicus
(Motschulsky 1857)
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1 specimen | |||||||||
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Insecta
- Coleoptera
- Gyrinidae
|
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| 3 specimens | ||||||||||
| (1 measurement) | ||||||||||
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Insecta
- Coleoptera
- Dytiscidae
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| 9 specimens | ||||||||||
| 1 specimen | ||||||||||
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Ilybius sp.
Erichson 1832
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15 specimens | |||||||||
| see common names | ||||||||||
Geography
| Country: | Japan |
| Coordinates: | 33.4° North, 131.6° East (view map) |
| Paleocoordinates: | |
| Basis of coordinate: | estimated from map |
| 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: | Hirabaru | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: 0.60±0.13 Ma fission-track ages from pumice layer just above fossil unit. | |||||
Lithology and environment
| Primary lithology: | lithified carbonaceous "siliciclastic" | ||
| Environment: | terrestrial indet. | Tectonic setting: | intramontane basin |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 165700 | ||
| Authorizer: | M. Clapham | Enterer: | M. Clapham |
| Modifier: | M. Clapham | Research group: | paleoentomology |
| Created: | 2015-01-26 21:31:39 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2015-01-26 21:31:39 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 54160. | M. Hayashi, K. Yahiro, and E. Kitabayashi. 2005. Middle Pleistocene fossil insects from the Hirabaru Formation of Kitsuki City, Oita Prefecture, Kyushu, Japan. Bulletin of the Mizunami Fossil Museum 32:227-234 [M. Clapham/M. Clapham] |