Kurusu (KU) Section, Inuyama, KU (d) 4: Late Triassic, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Polycystinea - Nassellaria - Livarellidae
Livarella sp. Kozur and Mostler 1981
Polycystinea - Nassellaria - Deflandrecyrtiidae
sensu Yao, 1982
Hori 1992
sensu Yao, 1982
Polycystinea - Spumellaria - Pantanelliidae
Cyclostomi - Conodontophorida
Conodonta indet. Pander 1856
see common names

Geography
Country:Japan
Coordinates: 35.4° North, 137.0° East (view map)
Paleocoordinates:40.3° North, 149.0° East (Wright 2013)
Basis of coordinate:stated in text
Geographic resolution:small collection
Time
Period: Triassic Epoch: Late Triassic
10 m.y. bin: Triassic 3-4
Key time interval: Late Triassic Zone:  Canoptum triassicum assemblage-zone
Age range of interval: 237 - 201.4 m.y. ago
Stratigraphy
Local section:Kurusu Local bed:KU (d) 4
Lithology and environment
Primary lithology:gray,green,red lithified chert
Secondary lithology: lithified mudstone
Lithology description: This section is composed of a rhythmically interbedded sequence of chert and mudstone. The thickness of individual chert layer varies from 1 to 7 cm (mostly 4-4,5 cm), and the mudstone layer is very thin (mostly 1-3mm). The chert exhibits a wide range of color, varying from mostly gray and green to partly red. In these chert layers, some sedimentary structures such as convolute lamination are observed.
Environment:marine indet.
Taphonomy
Modes of preservation:body
Size of fossils:microfossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Metadata
Database number:120051
Authorizer:J. Pálfy Enterer:A. Kocsis
Created:2011-11-06 20:13:11 Last modified:2025-02-22 15:12:02
Access level:the public Released:2011-11-06 20:13:11
Creative Commons license:CC0
Reference information

Primary reference:
38434. R. Hori. 1988. Some characteristic radiolarians from Lower Jurassic bedded cherts of the Inuyama area, Southwest Japan. Transactions and Proceedings of the Paleontological Society of Japan, N.S. 151:543-563 [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]