Du 3, Dubky locality on the Kuibyshev Reservoir, Volga River (Jurassic of Russian Federation)

Where: Russian Federation (54.6° N, 48.4° E: paleocoordinates 49.3° N, 50.0° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Late/Upper Kimmeridgian (155.7 - 150.8 Ma)

• Du 3 - 0.50 m; Eudoxus Zone

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified mixed carbonate-siliciclastic sediments

• The stage crops out on the waterside of the Kuibyshev Reservoir (Volga River, 25 km north of the town of Ulyanovsk), between Dubky and Mimei localities. It is a thick alternance (54 m and visual gap) of marls and argillaceous limestones, containing only one black shale horizon.

Size class: macrofossils

Primary reference: P. Hantzpergue, F. Baudin, V. Mitta, A. Olferiev, and V. A. Zakharov. 1998. The Upper Jurassic of the Volga basin: ammonites biostratigraphy and correlations with standard European zonations. C. R. Acad. Sci. Paris, Sciences de la terre et des planetes 326:633-640 [M. Aberhan/S. Nurnberg]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 58850: authorized by Martin Aberhan, entered by Sabine Nürnberg on 25.02.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Cephalopoda
 Ammonitida - Aulacostephanidae
Aulacostephanus yo
Aulacostephanus yo d'Orbigny 1850 ammonite
 Ammonitida - Aspidoceratidae
Aspidoceras ex gr. quercynum