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: 4.0 m
• bed-level stratigraphic resolution
Environment/lithology: open shallow subtidal; lithified, gray, blue claystone
• 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-gray bluish plastic clays. At the bottom of the bed are elongate ellipsoid concretions of of gray clay limestone. Smaller concretions are scattered over the bed. At the level 0.7 m from the bottom is a thin interbed of sandy silt with coal and small calcareous nodules.
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 58779: authorized by Martin Aberhan, entered by Sabine Nürnberg on 24.02.2006
Creative Commons license: CC BY (attribution)
Taxonomic list
Show authors, comments, and common names
Cephalopoda |
Belemnitida - |
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Ammonitida - Aulacostephanidae |
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Ammonitida - Cardioceratidae |
|
Bivalvia |
Arcida - Parallelodontidae |
|
Pectinida - Pectinoidae |
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Ostreida - Pinnidae |
|
Ostreida - Gryphaeidae |
|
Thraciida - Thraciidae |
|
Pholadida - Pleuromyidae |
|
Carditida - Astartidae |
|
Nuculida - Nuculidae |
|