S6, Sentyak Section, Kama River (Permian of Russian Federation)

Where: Russian Federation (55.7° N, 51.7° E: paleocoordinates 28.4° N, 44.1° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Krasnyi Yar Member (Belebey Formation), Roadian (272.3 - 268.8 Ma)

• Lower Kazanian beds, numbered S6/6 - S6/8 from bottom to top; S6/6 corresponds to the Kamyshla Beds, while S6/7 and S6/8 (which contain most of the fossils) correspond to the Krasnyi Yar Beds (Nurgaliev et al. 2015)

•Overlies the beds of outcrop S7 (Collection no. 197600), and is overlain by outcrop S2 (Collection no. 197620); Outcrop S5 shows S6/6 in bed-level detail (Collection no. 197601)

Environment/lithology: marine; mudstone and siltstone

• "[Kamyshla Formation]

•Package S6/6 Interval 52.0 - 67.5m Thickness 15.5m

•Alternation of grey sandstones, siltstones, shales, marls and limestone with marine and non-marine fauna. The lower part of the section contains a member (4m thick) of alternating grey sandstones, siltstones, shales, and limestones with two interbeds of black coaly rock ('charcoal'). This member was studied in outcrop 5 (Collection no. 197601).

•[Belebey Formation - Krasni Yar Beds]

•Package S6/7 Interval 67.5 - 79.5m Thickness 12.0m

•Sandstones interbedded with yellowish-grey and reddish-brown siltstones and shales.

•Package S6/8 Interval 79.5 - 93.5m Thickness 14.0m

•Reddish-brown mudstone and siltstone with laminae of limestones. The upper part of the bed contains non-marine ostracods, bivalves and fish scales." (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 197619: authorized by Alex Dunhill, entered by Bethany Allen on 18.11.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Osteichthyes
 Palaeonisciformes - Platysomidae
Platysomus sp.
Platysomus sp. Agassiz 1833
 Paramblypteriformes -
Paramblypterus sp.
Bivalvia
 Myalinida - Prokopievskiidae
Concinella sp.
Concinella sp. Sadovnikov 1960 clam
 Actinodontida - Palaeomutelidae
Palaeomutela attenuata, Palaeomutela olgae, Palaeomutela umbonata
Palaeomutela umbonata Fischer 1840 clam
Ostracoda
  -
Paleodarwinula verella, Paleodarwinula varsanofievae, Prasuchonella belebeica