Where: Russian Federation (54.6° N, 48.1° E: paleocoordinates 48.9° N, 49.7° E)

• coordinate stated in text

• hand sample-level geographic resolution

When: Early/Lower Berriasian (145.5 - 140.2 Ma)

• Upper Volgian, Craspedites subditus Ammonite Zone

• bed-level stratigraphic resolution

Environment/lithology: deep subtidal; lithified, argillaceous limestone

Size class: microfossils

Collection methods: bulk, chemical,

Primary reference: V. S. Vishnevskaya and B. L. Murchey. 2002. Climatic affinity and possible correlation of some Jurassic to Lower Cretaceous radiolarian assemblages from Russia and North America. Micropaleontology 48(S1):89-111 [W. Kiessling/W. Kiessling/W. Kiessling] more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 51288: authorized by Wolfgang Kiessling, entered by Wolfgang Kiessling on 02.06.2005