Katsuyama (UF) Section, Inuyama, Kb5: Early Jurassic, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Protozoa - Entactinaria - Saturnalidae
1 specimen
Polycystinea - Spumellaria - Orbiculiformidae
Orbiculiforma sp. Pessagno 1973
1 specimen
Polycystinea - Spumellaria - Pantanelliidae
Pantanellium sp. Pessagno 1977
2 specimens
Polycystinea - Nassellaria - Ultranaporidae
11 specimens
9 specimens
Gorican et al. 2006
Polycystinea - Nassellaria - Parvicingulidae
8 specimens
sensu Yao, 1982
Polycystinea - Nassellaria - Canoptidae
2 specimens
Polycystinea - Nassellaria - Syringocapsidae
1 specimen
see common names

Geography
Country:Japan
Coordinates: 35.4° North, 136.9° East (view map)
Paleocoordinates:47.1° North, 165.3° East (Wright 2013)
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period: Jurassic Epoch: Early Jurassic
10 m.y. bin: Jurassic 1-3
Key time interval: Early Jurassic
Age range of interval: 201.4 - 174.7 m.y. ago
Stratigraphy
Local section:Katsuyama supplementary section (Kb) Local bed:183 cm
Stratigraphic resolution:bed
Lithology and environment
Primary lithology:red or brown lithified chert
Secondary lithology: lithified "shale"
Includes fossils?Y
Lithology description: rythmically alternating sequence of light red-brown chert and shale beds
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
Reason for describing collection:biostratigraphic analysis
Metadata
Database number:120131
Authorizer:J. Pálfy Enterer:A. Kocsis
Research group:micropaleontology
Created:2011-11-08 03:22:30 Last modified:2025-02-22 15:12:02
Access level:the public Released:2011-11-08 03:22:30
Creative Commons license:CC0
Reference information

Primary reference:
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]

Secondary references:

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]