Iwayakannon (IY) Section, Inuyama, IYII5 (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 120016: 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 - Amphipyndacidae
"Andromeda "sp. D"" = Palinandromeda
"Andromeda "sp. D"" = Palinandromeda Pessagno et al. 1993 radiolarian
 Nassellaria - Hsuidae
? Parahsuum grande, ? Parahsuum hiconocosta, Hsuum "sp. α", Hsuum matsuokai, Hsuum altile
? Parahsuum grande radiolarian
? Parahsuum hiconocosta Baumgartner and De Wever 1995 radiolarian
Hsuum "sp. α" Pessagno 1977 radiolarian
Hsuum matsuokai Isozaki and Matsuda 1985 radiolarian
Hsuum altile Hori and Otsuka 1989 radiolarian
 Nassellaria - Eucyrtidiellidae
Eucyrtidiellum disparile
 Entactinaria - Saturnalidae
Hexasaturnalis hexagonus, Hexasaturnalis tetraspinus
Hexasaturnalis hexagonus Yao 1972 radiolarian
Hexasaturnalis tetraspinus Yao 1972 radiolarian