Katsuyama (UF) Section, Inuyama, Kb13: Early Jurassic, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Protozoa - Entactinaria - Eptingiidae
3 specimens
Polycystinea - Spumellaria - Praeconocaryommidae
1 specimen
Polycystinea - Spumellaria - Pantanelliidae
Pantanellium sp. Pessagno 1977
1 specimen
Polycystinea - Nassellaria - Hsuidae
2 specimens
Parahsuum sp. Yao 1982
1 specimen
9 specimens
Parahsuum ovale Hori and Yao 1988
1 specimen
Polycystinea - Nassellaria - Ultranaporidae
1 specimen
originally mentioned as Bipedis sp. A; valid name from Gorican et al. 2006
7 specimens
originally mentioned as Bipedis sp. B; valid name from Gorican et al. 2006
Polycystinea - Nassellaria - Farcidae
Farcus sp. Pessagno et al. 1986
1 specimen
Polycystinea - Nassellaria - Eucyrtidiidae
1 specimen
3 specimens
Polycystinea - Nassellaria - Parvicingulidae
1 specimen
sensu Yao, 1982
Polycystinea - Nassellaria - Syringocapsidae
? Katroma sp. Pessagno and Poisson 1981
2 specimens
6 specimens
sensu Yao
3 specimens
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:575 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:120138
Authorizer:J. Pálfy Enterer:A. Kocsis
Research group:micropaleontology
Created:2011-11-08 03:25:23 Last modified:2025-02-22 15:12:02
Access level:the public Released:2011-11-08 03:25:23
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]