Iwayakannon (IY) Section, Inuyama, IYII6 (Jurassic of Japan)

Where: Japan (35.4° N, 137.0° E: paleocoordinates 44.2° N, 142.9° E)

• coordinate stated in text

• small collection-level geographic resolution

When: Parahsuum grande assemblage-zone zone, Aalenian (174.1 - 170.3 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 120015: 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
 Entactinaria - Saturnalidae
Hexasaturnalis hexagonus
Hexasaturnalis hexagonus Yao 1972 radiolarian
 Nassellaria - Hsuidae
Hsuum exiguum, "Transhsuum cf. medium" = Hsuum medium, Parahsuum transiens, Parahsuum grande, Parahsuum simplum
Hsuum exiguum radiolarian
"Transhsuum cf. medium" = Hsuum medium Takemura 1986 radiolarian
Parahsuum transiens radiolarian
Parahsuum grande radiolarian
? Parahsuum grande in Carter et al. 2010
Parahsuum simplum Yao 1982 radiolarian
 Nassellaria - Eucyrtidiellidae
Eucyrtidiellum ex gr. disparile