Ust-Baley Locality (PIN collection 1082): Toarcian, Russian Federation
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Insecta
- Mesonetidae
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Mesoneta antiqua
Brauer et al. 1889
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Tshernova 1969 | 1 specimen | ||||||||
PIN 1082/5 | ||||||||||
Insecta
- Coleoptera
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Allognosis nitens
(Geinitz 1894)
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1 specimen | |||||||||
PIN 1082/3 | ||||||||||
Insecta
- Coleoptera
- Permosynidae
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Hydrobiites crassus
Ponomarenko 1985
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1 specimen | |||||||||
PIN 1082/1 | ||||||||||
see common names |
Geography
Country: | Russian Federation | State/province: | Irkutsk |
Coordinates: | 54.2° North, 100.3° East (view map) | ||
Paleocoordinates: | 61.8° North, 99.4° East | ||
Basis of coordinate: | estimated from map | ||
Geographic resolution: | outcrop |
Time
Period: | Jurassic | Epoch: | Early/Lower Jurassic |
Stage: | Toarcian | 10 m.y. bin: | Jurassic 3 |
Key time interval: | Toarcian | ||
Age range of interval: | 182.70000 - 174.10000 m.y. ago |
Stratigraphy
Formation: | Cheremkhovskaya | Member: | Ust' -Baleyskaya |
Lithology and environment
Primary lithology: | not reported | ||
Environment: | lacustrine - small | Tectonic setting: | cratonic basin |
Geology comments: The Ust'-Baley palaeocenosis is a well-described Mesozoic "hypotrophic" lake (Zherikhin and Kalugina 1985), of type "B" according to Sinitshenkova and Zherikhin (1996). It was a small, shallow, permanent lake in a large river valley (but completely isolated from the river), with a low primary production and high oxygen concentration. |
Taphonomy
Modes of preservation: | mold/impression |
Size of fossils: | macrofossils,mesofossils |
Collection methods and comments
Reason for describing collection: | taxonomic analysis |
Museum repositories: | PIN |
Metadata
Database number: | 125476 | ||
Authorizer: | M. Clapham | Enterer: | M. Clapham |
Modifier: | M. Clapham | Research group: | paleoentomology |
Created: | 2012-03-10 16:42:25 | Last modified: | 2014-07-22 19:11:07 |
Access level: | the public | Released: | 2012-03-10 16:42:25 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
40740. | A. G. Ponomarenko. 1985. Zhestkokrylye iz Yury Sibiri i zapadnoy Mongolii. In A. P. Rasnitsyn (ed.), Yurskie Nasekomye Sibiri i Mongolii 47-87 [M. Clapham/M. Clapham/M. Clapham] |
Secondary references:
49133 | O. A. Tshernova. 1969. New early Jurassic may-flies (Ephemeroptera, Epeoromimidae, Mesonetidae). Entomologicheskoe Obozrenie 48:153-161 [M. Clapham/M. Clapham/M. Clapham] |