Where: Russian Federation (49.4° N, 137.3° E: paleocoordinates 52.7° N, 139.9° E)

• coordinate estimated from map

• hand sample-level geographic resolution

When: Valanginian to Valanginian (140.2 - 130.0 Ma)

• bed-level stratigraphic resolution

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

Size class: microfossils

Preservation: original silica

Collection methods: chemical, hydroflouric,

Primary reference: I. M. Popova, P. O. Baumgartner, A. N. Filippov and A. I. Khanchuk. 1999. Jurassic and Early Cretaceous Radiolaria of the Lower Amurian Terrane: Khabarovsk region, Far East of Russia. The Island Arc 8(4):491-522 [W. Kiessling/W. Kiessling/W. Kiessling] more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 51605: authorized by Wolfgang Kiessling, entered by Wolfgang Kiessling on 09.06.2005