Katsuyama (UF) Section, Inuyama, UFI23: Early Aalenian, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Protozoa - Entactinaria - Saturnalidae
Hori 1992
Polycystinea - Nassellaria - Sethocapsidae
Hori 1992
Polycystinea - Nassellaria
Hori 1992
Gorican et al. 2006
sensu Baumgarter
Polycystinea - Nassellaria - Hsuidae
Hori 1992
Hori 1992
Hsuum sp. Pessagno 1977
Hori 1992
Polycystinea - Spumellaria - Pantanelliidae
Trillus cf. elkhornensis Pessagno and Blome 1980
Hori 1992
Polycystinea - Spumellaria - Parasaturnalidae
Carter et al. 2010
see common names

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:UF23
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:120195
Authorizer:J. Pálfy Enterer:A. Kocsis
Research group:micropaleontology
Created:2011-11-08 16:59:14 Last modified:2025-02-22 15:12:02
Access level:the public Released:2011-11-08 16:59:14
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:

38346 E. S. Carter, S. Goričan, J. Guex, L. O'Dogherty, P. De Wever, P. Dumitrica, R. S. Hori, A. Matsuoka, and P. A. Whalen. 2010. Global radiolarian zonation for the Pliensbachian, Toarcian and Aalenian. Palaeogeography, Palaeoclimatology, Palaeoecology 297:401-419 [J. Pálfy/A. Kocsis/M. Uhen]
40282 S. Gorican, E. S. Carter, P. Dumitrica, P. A. Whalen, R. S. Hori, P. De Wever, L. O'Dogherty, A. Matsuoka, and J. Guex. 2006. Catalogue and systematics of Pliensbachian, Toarcian and Aalenian radiolarian genera and species 446 [J. Pálfy/A. Kocsis]
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]