Where: Russian Federation (55.8° N, 48.9° E: paleocoordinates 28.3° N, 42.8° E)
• coordinate stated in text
• outcrop-level geographic resolution
When: Tobacco Sandstone Member (Isheevo Formation), Wordian (266.9 - 264.3 Ma)
• Urzhumian beds, numbered P09/127 - P09/135 from bottom to top; the upper part of the formation is at outcrop P11 (Collection no. 197591) (Nurgaliev et al. 2015)
Environment/lithology: marine; shale and sandstone
•Packages P09/127 - P09/135 Interval 66.85-72.20m Thickness (visible) 5.35m
•Shale and sandstone. Shales: reddish-brown (chocolate-brown), brownish-red, yellowish, compact, horizontally bedded. Sandstones: greenish-grey (tobacco) polymict, inequigranular, obliquely laminated. The shales contain many (especially right below the sandstones) remains of bivalves, conchostrachans and ostracods.
•Outcrop P10 contains the slide-rocks of overlaid succession, while P11-13 (Collection nos. 197591, 197592) includes the upper part of the Tobacco Sandstone Member and the Krutoovrazhnaya ('Steep Gullies') Member." (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 197590: authorized by Alex Dunhill, entered by Bethany Allen on 17.11.2018
Creative Commons license: CC BY (attribution)
Taxonomic list
| Ostracoda | |
|
Paleodarwinula fragiliformis ostracod
Paleodarwinula elongata ostracod
Prasuchonella nasalis ostracod | |
| Branchiopoda | |
|
Eustheria eos clam shrimp | |
|
Pseudestheria sukhonensis clam shrimp | |
|
Estheriina kawasakii clam shrimp | |
|
Trigonestheria angulata clam shrimp | |
| Bivalvia | |
|
| |
|
Prilukiella subovata clam | |