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: Crimson Shale Member (Isheevo Formation), Wordian (266.9 - 264.3 Ma)
• Urzhumian beds, numbered P07/110 - P07/125 from bottom to top (Nurgaliev et al. 2015)
Environment/lithology: marine; limestone and marl
•Packages 07/110 - P07/125 Interval 58.45 - 66.85 Thickness 8.40m
•Alternation of limestone, marl and shale with subordinate interbeds of siltstone and sandstone. Limestone is light- or dark-grey, muddy, compact, solid, algal-microbial, sometimes very hard and finely wavy laminated, riddled with numerous voids of plant roots in situ. Shale: bright red, bright green, greenish-grey, calcareous. Shale with lenticular lamination contains numerous remains of ostracods, bivalves, fish scales and tetrapods. Shale with greenish-grey and red spots (stains) of gleisation is overfilled with calcareous concretions (paleosol horizons).
•The Tobacco Sandstone Member, which overlies the Crimson Shale Member, is observed at outcrop P09 (Collection no. 197590)." (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 197588: authorized by Alex Dunhill, entered by Bethany Allen on 17.11.2018
Creative Commons license: CC BY (attribution)
Taxonomic list
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| Ostracoda | |
Prasuchonella nasalis, Paleodarwinula fragiliformis, Paleodarwinula cf. elongata, Paleodarwinula cf. tuba
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