Iwayakannon (IY) Section, Inuyama, IYII9 (Jurassic to of Japan)

Where: Japan (35.4° N, 137.0° E: paleocoordinates 45.0° N, 144.6° E)

• coordinate stated in text

• small collection-level geographic resolution

When: Hexasaturnalis hexagonus assemblage-zone zone, Middle Toarcian to Middle Toarcian (182.0 - 175.6 Ma)

• bed-level stratigraphic resolution

Environment/lithology: marine; black, gray, green, red, white chert and mudstone

• Rhytmically interbedded chert and mudstone. The color of the chert varies considerably, exhibiting green, gray, red, white and black hues.

Size class: microfossils

Primary reference: 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]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 120011: authorized by József Pálfy, entered by Adam Kocsis on 06.11.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Protozoa
 Nassellaria - Hsuidae
Parahsuum transiens, Parahsuum simplum
Parahsuum simplum Yao 1982 radiolarian
 Entactinaria - Saturnalidae
"Acanthocircus hexagonus" = Hexasaturnalis hexagonus
"Acanthocircus hexagonus" = Hexasaturnalis hexagonus Yao 1972 radiolarian