Where: Siberia, USSR (75.0° N, 105.0° E: paleocoordinates 75.9° N, 79.9° E)

• small collection-level geographic resolution

When: Chetaites sibiricus zone, Berriasian (145.5 - 140.2 Ma)

Environment/lithology:

Collection methods: fauna was collected from calcareous sandstone concretions of layers 1 and 2 (fine-grained sandstones) along the Kheta River towpath

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

PaleoDB collection 2457: authorized by Mark Patzkowsky, entered by Karen Layou on 05.07.1999, edited by Austin Hendy