Lopsiya River, outcrop 41, bed 5 (Jurassic of Russian Federation)

Where: Khanty-Mansi Autonomous Okrug, Russian Federation (62.5° N, 60.3° E: paleocoordinates 58.5° N, 56.7° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Aulacostephanus sosvaensis ammonoid zone, Late/Upper Kimmeridgian (155.7 - 150.8 Ma)

• Kimmeridgian Stage, Upper Substage, Aulacostephanus sosvaensis Zone;

•thickness: 0.06-0.15 m

• bed-level stratigraphic resolution

Environment/lithology: open shallow subtidal; lithified claystone and lithified limestone

• The explored Kimmeridgian section denuded along the Lopsiya River formed under the embayment conditions of an epicontinental West Siberian sea, covering the territory of more than 2 mln km^2. This Lyapinsky Bay was rather shallow and opened toward the NNE. The narrow band of the Uralian Peninsula seperated it from the Timon-Pechora Sea in the west, and the small Berezovsky Archipelago seperated it from the West Siberian Sea in the east.
• Dark organic-rich clay, brown on the weathered surface, in places changing to organic-rich limestone.

Size class: macrofossils

Collection methods: Repository: VNIGRI

Primary reference: M. S. Mesezhnikov. 1984. Kimeridzhskiy i Volzhskiy Yarusy Severa SSSR 1-224 [M. Clapham/M. Clapham]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 58780: authorized by Martin Aberhan, entered by Sabine Nürnberg on 24.02.2006, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Bivalvia
 Pectinida - Oxytomidae
Meleagrinella sp.
Meleagrinella sp. Whitfield 1855 scallop
Cephalopoda
 Goniatitida - Prionoceratidae
Amoeboceras (Amoebites) uralensis, Amoeboceras (Amoebites) kitchini, Amoeboceras (Euprionoceras) sp.
Amoeboceras (Amoebites) kitchini Salfeld 1915 ammonite
 Ammonitida - Aulacostephanidae
Aulacostephanus (Aulacostephanus) sagittatus, Aulacostephanus (Aulacostephanoceras) pinguis