Where: Japan (35.4° N, 136.9° E: paleocoordinates 47.5° N, 146.4° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Pantanellium tanuense zone, Early/Lower Hettangian (201.6 - 196.5 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: basinal (siliceous); lithified chert and lithified shale

Size class: microfossils

Preservation: original silica

Collection methods: chemical, hydroflouric,

Primary reference: R. Hori. 1992. Radiolarian Biostratigraphy at the Triassic/Jurassic Period Boundary in Bedded Cherts from the Inuyama Area, Central Japan. Journal of Geosciences, Osaka City University 35(4):53-65 [J. Pálfy/A. Kocsis] more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 54234: authorized by Wolfgang Kiessling, entered by Martin Riess on 27.09.2005, edited by Adam Kocsis