List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Coniferales
- Cupressaceae
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Metasequoia occidentalis
Chaney 1951
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8 specimens | |||||||||
| 1 specimen | ||||||||||
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Angiospermae
- Fagales
- Betulaceae
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| 32 specimens | ||||||||||
| Turcz. | ||||||||||
| 2 specimens | ||||||||||
| Steud. | ||||||||||
| 2 specimens | ||||||||||
| Huzioka | ||||||||||
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Angiospermae
- Fagales
- Fagaceae
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| 23 specimens | ||||||||||
| (Nathorst) Tanai | ||||||||||
| 15 specimens | ||||||||||
| (Nathorst) Tanai | ||||||||||
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Quercus miovariabilis
Hu and Chaney 1938
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2 specimens | |||||||||
| Hu and Chaney | ||||||||||
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Angiospermae
- Fabales
- Fabaceae
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| 1 specimen | ||||||||||
| Huzioka | ||||||||||
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Angiospermae
- Vitales
- Vitaceae
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| 1 specimen | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Japan | State/province: | Gunma |
| Coordinates: | 36.7° North, 138.8° East (view map) | ||
| Paleocoordinates: | 36.4° North, 136.5° East (Wright 2013) | ||
| Basis of coordinate: | estimated from map | ||
| Geographic resolution: | outcrop |
Stratigraphy
| Formation: | Daido | ||||
| Stratigraphy comments: Plant bearing Daido Formation generally rests comformably upon the Kassezawa or Akasaka Formations and unconformably underlies the Krigakubi welded tuff Formation. |
Lithology and environment
| Primary lithology: | conglomerate |
| Secondary lithology: | sandstone |
| Includes fossils? | Y |
| Includes fossils? | Y |
| Lithology description: Cyclic sediments of conglomerate, sandstone and siltstone it is correlative with the Late Miocene Itahana Formation by the lithology. | |
Taphonomy
| Modes of preservation: | original carbon |
| Size of fossils: | macrofossils |
| Temporal resolution: | snapshot |
| Spatial resolution: | parautochthonous |
Collection methods and comments
| Collection methods: | surface (in situ),field collection |
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: The floristic composition suggests that the Daido flora was derived from the forest somewhat similar to the existing Fagus forest, which is now distributed in the valley to slope area of the cool temperate zone. | |
Metadata
| Database number: | 22786 | ||
| Authorizer: | H. Sims | Enterer: | H. Lindon |
| Modifier: | J. Cassara | Research group: | paleobotany |
| Created: | 2002-06-26 04:29:16 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2002-06-26 04:29:16 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 6513. | K. Ozaki. 1991. Late Miocene and Pliocene Floras in Central Honshu, Japan. Bulletin of Kanagawa Prefectural Museam Natural Science Special Issue 1-244 [H. Sims/H. Lindon/H. Lindon] |