Where: Japan (35.4° N, 137.0° E: paleocoordinates 47.4° N, 147.1° E)
• coordinate stated in text
• small collection-level geographic resolution
When: Parahsuum simplum assemblage-zone zone, Hettangian to Hettangian (201.3 - 182.7 Ma)
Environment/lithology: marine; lithified, gray, green, red chert and lithified mudstone
•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 120061: authorized by József Pálfy, entered by Adam Kocsis on 06.11.2011
Creative Commons license: CC BY (attribution)
Taxonomic list
Protozoa | |
Parahsuum simplum Yao 1982 radiolarian | |
Syringocapsa coliforme Hori 1988 radiolarian | |
Bipedis japonicus Gorican et al. 2006 radiolarian |