Boyarka River-5 (Cretaceous of USSR)
Where: Siberia, USSR (70.8° N, 97.6° E: paleocoordinates 71.2° N, 81.5° E)
• small collection-level geographic resolution
When: Surites analogus zone, IV Member, Berriasian (145.5 - 140.2 Ma)
• member-level stratigraphic resolution
Environment/lithology: gray, green, argillaceous siltstone
• lithology described as clayey silt, with some sandy material; intercalations of lenses of grey-yellow plastic clay and calcareous siltstone are present; concretions of calcareous siltstone are also present
Primary reference: V. N. Saks, ed. 1975. The Jurassic-Cretaceous Boundary and the Berriasian Stage in the Boreal Realm. 1-319 [M. Patzkowsky/K. Layou/A. Clement] more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 2470: authorized by Mark Patzkowsky, entered by Karen Layou on 05.07.1999, edited by Austin Hendy