Where: Russian Federation (55.7° N, 51.7° E: paleocoordinates 29.3° N, 44.2° E)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Wordian (266.9 - 264.3 Ma)
• Urzhumian / Upper Kazanian beds, numbered S1/14 (Nurgaliev et al. 2015)
•Overlies the beds of outcrop S2 (Collection no. 197620)
Environment/lithology: marine; siltstone and shale
•Package S1/14 Interval 159.5 - 169.0m Thickness 10.0m
•Sandstone (5m thick): reddish-brown, medium-grained, obliquely laminated, with thick pillar fractures. The surface of the red-bed Kazanian succession is eroded and slightly undulated. The sandstone is overlain by the alternation (thickness approx. 5m) of red, violet, and pink siltstones and shales with bluish-grey marl and limestones. Marl and shale: grey, dark-grey, muddy, compact, solid, algal-microbial, sometimes very hard and finely wavy laminated, riddled with numerous voids of plant roots in situ. Shale adjacent to limestone contains non-marine bivalves, ostracods, fish scales and rare fragments of amphibian bones." (Nurgaliev et al. 2015)
Size class: macrofossils
Primary reference: D. K. Nurgaliev, V. V. Silantiev, and S. V. Nikolaeva. 2015. Type and reference sections of the Middle and Upper Permian of the Volga and Kama River Regions: A Field Guidebook of XVIII International Congress on Carboniferous and Permian. 1-208 [A. Dunhill/B. Allen/P. Wagner]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 197621: authorized by Alex Dunhill, entered by Bethany Allen on 18.11.2018
Creative Commons license: CC BY (attribution)
Taxonomic list
| Bivalvia | |
|
Palaeomutela krotowi Netschajew 1894 clam | |
| Ostracoda | |
Paleodarwinula fragiliformis, Paleodarwinula teodorovichi, Paleodarwinula torensis, Paleodarwinula defluxa, Paleodarwinula elongata, Paleodarwinula elegantella, Paleodarwinula chramovi, Prasuchonella nasalis
Paleodarwinula fragiliformis ostracod
Paleodarwinula teodorovichi ostracod
Paleodarwinula torensis ostracod
Paleodarwinula defluxa ostracod
Paleodarwinula elongata ostracod
Paleodarwinula elegantella ostracod
Paleodarwinula chramovi ostracod
Prasuchonella nasalis ostracod | |
| Amphibia | |
|
Amphibia indet. tetrapod | |