K3, Pechishchi Village, Volga River (lower): Roadian, Russian Federation
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Rhynchonellata
- Spiriferinida
- Licharewiidae
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Licharewia rugulata
(Kutorga 1842)
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Nurgaliev et al. 2015 | |||||||||
| Unit K3/kz1.1 | ||||||||||
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Licharewia stuckenbergi
(Netschajew 1900)
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| Unit K3/kz1.1 | ||||||||||
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Rhynchonellata
- Spiriferida
- Trigonotretidae
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Blasispirifer multiplicicostatus
(Netschajew 1894)
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Nurgaliev et al. 2015 | |||||||||
| Unit K3/kz1.1 | ||||||||||
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Rhynchonellata
- Spiriferida
- Paeckelmanellidae
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Odontospirifer subcristatus
(Netschajew 1900)
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Nurgaliev et al. 2015 | |||||||||
| Unit K3/kz1.1 | ||||||||||
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Strophomenata
- Productida
- Linoproductidae
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Cancrinella cancrini
(de Verneuil 1845)
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Nurgaliev et al. 2015 | |||||||||
| Unit K3/kz1.1; kz1.2; kz1.3 | ||||||||||
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unclassified
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Bryozoa indet.
(Ehrenberg 1831)
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Nurgaliev et al. 2015 | |||||||||
| Unit K3/kz1.1 | ||||||||||
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Actinopterygii indet.
(Cope 1887)
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Nurgaliev et al. 2015 | |||||||||
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Elonichthyiformes
- Elonichthyidae
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Elonichthyidae indet.
Aldinger 1937
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Nurgaliev et al. 2015 | |||||||||
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Alilepis sp.
Yankevich 1998
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Nurgaliev et al. 2015 | |||||||||
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Chondrichthyes
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Euselachii indet.
(Hay 1902)
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Nurgaliev et al. 2015 | |||||||||
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Chondrichthyes
- Sphenacanthidae
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Sphenacanthidae indet.
Maisey 1982
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Nurgaliev et al. 2015 | |||||||||
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Chondrichthyes
- Anachronistidae
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Cooleyella amazonensis
Duffin et al. 1996
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Nurgaliev et al. 2015 | |||||||||
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Chondrichthyes
- Hybodontiformes
- Polyacrodontidae
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Polyacrodus sp.
Jaekel 1889
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Nurgaliev et al. 2015 | |||||||||
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Crinoidea
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Crinoidea indet.
Miller 1821
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Nurgaliev et al. 2015 | |||||||||
| Unit K3/kz1.1 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Russian Federation |
| Coordinates: | 55.8° North, 48.9° East (view map) |
| Paleocoordinates: | 27.4° North, 42.6° East |
| Basis of coordinate: | based on nearby landmark |
| Geographic resolution: | outcrop |
Time
| Period: | Permian | Epoch: | Guadalupian |
| Stage: | Roadian | 10 m.y. bin: | Permian 3 |
| Key time interval: | Roadian | ||
| Age range of interval: | 273.01000 - 266.90000 m.y. ago |
Stratigraphy
| Formation: | Kazan | ||||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: Lower Kazanian beds, numbered K3/kz1.1 - K3/kz1.5 from base of unit upwards (Nurgaliev et al. 2015); Upper Kazanian beds from this section in Collection no. 197534
"The base of the Upper Kazanian Substage, as defined by Noinsky (1899, 1924), is exposed 1.5m above the river level and 54.5m ASL." (Nurgaliev et al. 2015) | |||||
Lithology and environment
| Primary lithology: | "limestone" |
| Secondary lithology: | "shale" |
| Lithology description: "Unit K3/kz1 Interval 0.00-0.10m Thickness (visible) 0.10m Shale: brown to brownish grey, with numerous crushed brachiopods... and numerous fragments of bryozoans and crinoids. The shell structure is well preserved. Unit K3/kz2 Interval 0.10-0.55m Thickness 0.45m Limestone: pale grey, argillaceous, fine-grained, bedded, with disrupted subparallel sedimentary lamination. The lamination is also expressed on polished slabs as predominant horizontal orientation of bioclasts that locally imbricate to form "micro-pavements". Lamination planes show plant detritus, charophyte stalks, sparse Cancrinella, and unidentified branching calcareous microtubules. The rock is microporous, soft, and waterlogged at 0.30-0.45m of cumulative thickness. Unit K3/kz3 Interval 0.55-0.85m Thickness 0.30m Limestone: grey, weathers brownish, micritic (bioclastic wackestone to mudstone), weakly fissile, probably weakly argillaceous, with numerous Cancrinella on the bedding planes in the middle. Randomly oriented bioclasts indicate bioturbation. Bioclastic micro-pavements are locally preserved in the middle part of the unit. Unit K3/kz4 Interval 0.85-1.35m Thickness 0.5m Calcareous marl: dark grey, weathers brownish, unevenly hard, moderately fissile, laterally grading to the soft marly rock. Bioturbated bioclastic wackestone or calcimudstone with rare patches of bioclast micro-pavements. Unit K3/kz5 Interval 1.35-1.45m Thickness 0.10m Limestone: pale brownish grey, dolomitic, fine-grained, thin-bedded. Base conformable and gradational. This unit may be a part of the 'Chervotochina' Bed sensu Noinsky (1899, 1924). This unit can be described as a transition from fissile marl K3/kz4 to thick-bedded dolostone K3/1 marking a conformable contact of the Lower and Upper Kazanian in the type section." (Nurgaliev et al. 2015) | |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 117434 | ||
| Authorizer: | M. Clapham, A. Dunhill | Enterer: | M. Clapham, B. Allen |
| Modifier: | B. Allen | ||
| Created: | 2011-09-20 13:02:11 | Last modified: | 2018-11-24 04:12:09 |
| Access level: | the public | Released: | 2011-09-20 13:02:11 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 31801. | T. G. Sarycheva. 1977. Brakhiopody verkhnego paleozoya Sibiri i Arktiki. Akademiya Nauk SSSR, Trudy Paleontologicheskogo Instituta 162:1-119 [M. Clapham/M. Clapham/M. Clapham] |
Secondary references:
| 67364 | 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] |