S5, 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: Kamyshla Member (Baitugan Formation), Roadian (272.3 - 268.8 Ma)

• Lower Kazanian beds, numbered S5/6-1 - S5/6-12 from bottom to top (Nurgaliev et al. 2015)

•Analogous to S6/6 at outcrop 6 (Collection no. 197619)

Environment/lithology: marine; limestone and siltstone

• "[Baitugan - Kamyshla Beds]

•Bed S5/6-1

•Grey limestones with foraminifers, the marine gastropod Goniasma sp., and bivalves. The upper part of the limestones is characterised by very fine 'sheet' lamination and contains conchostracans, non-marine bivalves, mass accumulations of the charophytes Stellatochara gracilis, and the leaves and stems of various plants. The thickness is 0.8m.

•Bed S5/6-2

•Siltstone: greenish-grey with Palaeomutela sp. The thickness is 0.15m.

•Bed S5/6-3

•Limestone: grey, 'sheet' laminated, with Palaeomutela. The thickness is 0.8m.

•Bed S5/6-4

•Coaly rock ('charcoal'). The thickness is 0.13m.

•Bed S5/6-5

•Siltstone: greenish-grey. The thickness is 0.06m.

•Bed S5/6-6

•Limestones and marls with Palaeomutela umbonata. The thickness is 0.2m.

•Bed S5/6-7

•Siltstone: greenish-grey. The thickness is 0.4m.

•Bed S5/6-8

•Limestone: grey, compact, with marine bivalves in the lower part. The upper part contains the bivalves Liebea (?) sp., many fish scales, and fragments of amphibian bones. The thickness is 0.6m.

•Bed S5/6-9

•Sandstone: greenish-grey, with a shale seam in the upper part. The thickness is 0.5m.

•Bed S5/6-10

•Limestone: grey, compact. The thickness is 0.2m.

•Bed S5/6-11

•Siltstone: greenish-grey, with Palaeomutela umbonata. The thickness is 0.1m.

•Bed S5/6-12

•Marl and limestone: grey, with a thin lamina of coaly rock and with Pseudomonotis permianus. The thickness is 0.35m. Siltstone: greenish-grey. The thickness is 0.2m." (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 197601: authorized by Alex Dunhill, entered by Bethany Allen on 17.11.2018

Creative Commons license: CC BY (attribution)

Taxonomic list

Amphibia
 Amphibia -
Amphibia indet. tetrapod
Bed S5/6-8
Osteichthyes
 Elonichthyiformes - Acrolepididae
Kazanichthys golyushermensis Esin 1995 ray-finned fish
Bed S5/6-8
 Elonichthyiformes - Acrolepidae
Acropholis stensioi ray-finned fish
Bed S5/6-8
 Palaeonisciformes - Platysomidae
Platysomus striatus Agassiz 1833
Bed S5/6-8
 Palaeonisciformes - Palaeoniscidae
Palaeoniscum kasanense Geinitz and Vetter 1880
Bed S5/6-8
Actinopteri
 Semionotiformes - Semionotidae
Acentrophorus varians Kirkby 1862
Bed S5/6-8
Gastropoda
 Caenogastropoda - Goniasmatidae
Goniasma sp. Tomlin 1930 snail
Bed S5/6-1
Bivalvia
 Mytilida - Mytilidae
Lithophaga consobrina Eichwald 1861 mussel
Bed S5/6-1
 Myalinida - Myalinidae
? Liebea sp. Waagen 1881 clam
Bed S5/6-8
 Pectinida - Pseudomonotidae
"Pseudomonotis permianus" = Pseudomonotis (Pseudomonotis) permianus, "Pseudomonotis speluncaria" = Pseudomonotis (Pseudomonotis) speluncaria
"Pseudomonotis permianus" = Pseudomonotis (Pseudomonotis) permianus Maslennikov 1935 scallop
Bed S5/6-12
"Pseudomonotis speluncaria" = Pseudomonotis (Pseudomonotis) speluncaria von Schlotheim 1816 scallop
Bed S5/6-1
 Cardiida - Kalenteridae
Permophorus simplex clam
Bed S5/6-1, 6-8
 Actinodontida - Palaeomutelidae
Palaeomutela attenuata clam
Bed S5/6-1, 6-3
Palaeomutela olgae clam
Bed S5/6-1
Palaeomutela umbonata Fischer 1840 clam
Bed S5/6-1, 6-3, 6-6, 6-11
 Trigoniida - Schizodidae
Schizodus rossicus de Verneuil 1845 clam
Bed S5/6-1, 6-8
Branchiopoda
 Diplostraca -
Conchostraca indet. Sars 1867 clam shrimp
Bed S5/6-1
Peltaspermopsida
 Umkomasiales - Angaropeltidaceae
"Cardiolepis sentjakensis" = Angaropeltis sentjakense
"Cardiolepis sentjakensis" = Angaropeltis sentjakense Doweld 2001
Bed S5/6-1
 Peltaspermales - Cardiolepidaceae
 Peltaspermales -
Radicites
  -
Sphenopsida
  -
Brongniartites salicifolius
  -
Brongniartites salicifolius Fischer 1927
Bed S5/6-1
Polypodiopsida
 Equisetales - Equisetidae
Vesicaspora
  -
Stellatochara
  -
Nodosariata
 Nodosariida - Nodosariidae
Foraminifera
 Ammodiscoidea - Ammodiscidae
 Lagenina - Ichthyolariidae
 Fusulinina - Pseudoammodiscidae
 Fusulinina - Geinitzinidae