Iwayakannon (IY) Section, Inuyama, IYII3: Aalenian, Japan

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Protozoa - Entactinaria - Saturnalidae
Carter et al. 2010
Carter et al. 2010
Polycystinea - Spumellaria - Pantanelliidae
Trillus elkhornensis Pessagno and Blome 1980
Carter et al. 2010
Polycystinea - Nassellaria
Nassellaria indet. Ehrenberg 1875
Polycystinea - Nassellaria - Ultranaporidae
Carter et al. 2010
Polycystinea - Nassellaria - Parvicingulidae
sensu Murchey, 1984
Gorican et al. 2006
Carter et al. 2010
Polycystinea - Nassellaria - Amphipyndacidae
Polycystinea - Nassellaria - Hsuidae
Transhsuum medium Takemura 1986
Carter et al. 2010
? Parahsuum grande in Carter et al. 2010
see common names

Geography
Country:Japan
Coordinates: 35.4° North, 137.0° East (view map)
Paleocoordinates:47.1° North, 156.2° East (Wright 2013)
Basis of coordinate:stated in text
Geographic resolution:small collection
Time
Period: Jurassic Epoch: Middle Jurassic
Stage: Aalenian 10 m.y. bin: Jurassic 4
Key time interval: Aalenian Zone:  Parahsuum grande assemblage-zone
Age range of interval: 174.7 - 170.9 m.y. ago
Stratigraphy
Local section:Iwayakannon Local bed:IYII3
Local order:top to bottom
Stratigraphic resolution:bed
Lithology and environment
Primary lithology:black,gray,green,red,white chert
Secondary lithology: mudstone
Lithology description: Rhytmically interbedded chert and mudstone. The color of the chert varies considerably, exhibiting green, gray, red, white and black hues.
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:120018
Authorizer:J. Pálfy Enterer:A. Kocsis
Modifier:A. Kocsis
Created:2011-11-06 07:44:42 Last modified:2025-02-22 15:12:02
Access level:the public Released:2011-11-06 07:44:42
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:

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]