ammonites
Tol'ya River-1 (Cretaceous of USSR)

Where: Cis-Polar Trans-Urals, USSR (62.3° N, 59.0° E: paleocoordinates 57.7° N, 55.9° E)

• small collection-level geographic resolution

When: Hectoroceras kochi zone, Berriasian (145.5 - 140.2 Ma)

Environment/lithology: glauconitic, green sandstone

• lithology described as glauconitic-leptochloritic nodular rock with a small admixture of sandy-silty material, isolated grains of gravel, with leptochlorite-siderite cement.

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 2498: authorized by Mark Patzkowsky, entered by Karen Layou on 07.07.1999