Katsuyama (UF) Section, Inuyama, UFI24: Early Aalenian, Japan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Geography
| Country: | Japan |
| Coordinates: | 35.4° North, 137.0° East (view map) |
| Paleocoordinates: | 47.1° North, 158.4° East (Wright 2013) |
| Basis of coordinate: | stated in text |
| Geographic resolution: | outcrop |
Time
| Period: | Jurassic | Epoch: | Middle Jurassic |
| Stage: | Aalenian | 10 m.y. bin: | Jurassic 4 |
| Key time interval: | Early Aalenian | ||
| Age range of interval: | 174.7 - 170.9 m.y. ago |
Stratigraphy
| Local section: | Katsuyama (UF) | Local bed: | UF24 | ||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: Parahsuum? grande assemblage-zone | |||||
Lithology and environment
| Primary lithology: | lithified mudstone | ||
| Secondary lithology: | lithified chert | ||
| Environment: | basinal (siliceous) | Tectonic setting: | deep ocean basin |
Taphonomy
| Modes of preservation: | body,original silica |
| Size of fossils: | microfossils |
| Preservation of anatomical detail: | medium |
Collection methods and comments
| Collection methods: | chemical,hydroflouric |
| Reason for describing collection: | biostratigraphic analysis |
Metadata
| Database number: | 120196 | ||
| Authorizer: | J. Pálfy | Enterer: | A. Kocsis | Research group: | micropaleontology |
| Created: | 2011-11-08 16:59:27 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2011-11-08 16:59:27 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 38461. | R. Hori. 1990. Lower Jurassic Radiolarian Zones of SW Japan. Transactions and Proceedings of the Paleontological Society of Japan, N.S. 159:562-586 [J. Pálfy/A. Kocsis] |
Secondary references:
| 38450 | R. Hori. 1992. Radiolarian Biostratigraphy at the Triassic/Jurassic Period Boundary in Bedded Cherts from the Inuyama Area, Central Japan. Journal of Geosciences, Osaka City University 35(4):53-65 [J. Pálfy/A. Kocsis] |