Cape Urdyuk-Khaya-6 (Cretaceous of Russian Federation)

Where: Siberia, Russian Federation (73.0° N, 113.0° E: paleocoordinates 75.5° N, 91.9° E)

• outcrop-level geographic resolution

When: Hectoroceras kochi ammonoid zone, XI Member, Berriasian (145.0 - 139.8 Ma)

• exposure 33, layer 28; exposure 31, layers 52-53

• member-level stratigraphic resolution

Environment/lithology: marine; gray, carbonaceous claystone

• includes oblate concretions of pyrite and thin streaks of pyritized clayey limestone throughout the member

Size class: macrofossils

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/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 2480: authorized by Mark Patzkowsky, entered by Karen Layou on 06.07.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Foraminifera
 Lituolacea - Ammosphaeroidinidae
Recurvoides obskiensis
 Lituolida - Haplophragmoididae
Haplophragmoides emeljanzevi, Haplophragmoides schleiferi, Haplophragmoides sp.
Haplophragmoides sp. Cushman 1910
Cephalopoda
 Ammonitida - Polyptychitidae
Subcraspedites sp.
Subcraspedites sp. Spath 1924 ammonite
Malacostraca
 Decapoda -
Decapoda indet.
Decapoda indet. Latreille 1802 decapod