Where: Japan (35.3° N, 136.4° E: paleocoordinates 28.9° N, 112.0° E)

• coordinate estimated from map

• hand sample-level geographic resolution

When: Neoalbaillella optima and N. ornithoformis Assemblage Zones of Ishiga (1986) zone, Wuchiapingian to Wuchiapingian (259.9 - 252.2 Ma)

• upper Wuchiapingian-Changhsingian

Environment/lithology: basinal (siliceous); lithified, gray, green chert

Size class: microfossils

Primary reference: K. Kuwahara. 1997. Evolutionary patterns of Late Permian Albaillella (Radiolaria) as seen in bedded chert sections in the Mino Belt, Japan. Marine Micropaleontology 30:65-78 [J. Pálfy/A. Kocsis]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 130473: authorized by József Pálfy, entered by Adam Kocsis on 09.07.2012

Creative Commons license: CC BY (attribution)