Iwayakannon (IY) Section, Inuyama, IYII17 (Jurassic to of Japan)

Where: Japan (35.4° N, 137.0° E: paleocoordinates 47.3° N, 147.0° E)

• coordinate stated in text

• small collection-level geographic resolution

When: Parahsuum simplum assemblage-zone zone, Sinemurian to Sinemurian (199.3 - 182.7 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 120003: 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
 Spumellaria - Praeconocaryommidae
Praeconocaryomma sp.
Praeconocaryomma sp. Pessagno 1976 radiolarian
 Nassellaria - Hsuidae
Parahsuum simplum1
Parahsuum simplum1 Yao 1982 radiolarian
 Nassellaria - Eucyrtidiellidae
Eucyrtidiellum ex gr. gunense1
 Nassellaria - Syringocapsidae
Pleesus aptus1, "Katroma kurusuensis" = Katroma clara, Katroma bicornus1
Pleesus aptus1 Yeh 1987 radiolarian
"Katroma kurusuensis" = Katroma clara Yeh 1987 radiolarian
Katroma bicornus1 De Wever 1982 radiolarian
 Nassellaria - Ultranaporidae
Bipedis yaoi2, Bipedis japonicus2
Bipedis yaoi2 Gorican et al. 2006 radiolarian
Bipedis japonicus2 Gorican et al. 2006 radiolarian
1Carter et al. 2010; 2Gorican et al. 2006