Kurusu (KU) Section, Inuyama, KU (a) 1 (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)

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

• This section is composed of a rhythmically interbedded sequence of chert and mudstone. The thickness of individual chert layer varies from 1 to 7 cm (mostly 4-4,5 cm), and the mudstone layer is very thin (mostly 1-3mm).

•The chert exhibits a wide range of color, varying from mostly gray and green to partly red. In these chert layers, some sedimentary structures such as convolute lamination are observed.

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 120075: 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 - Parvicingulidae
Praeparvicingula nanoconica
Praeparvicingula nanoconica Hori and Otsuka 1989 radiolarian