Madygen, PIN collection 2031, Madygen: Ladinian, Kyrgyzstan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Insecta
- Plecoptera
- Mesoleuctridae
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Mesoleuctra brachypoda n. sp.
Sinitshenkova 1987
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9 specimens | |||||||||
| PIN 2031/22-30 | ||||||||||
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Insecta
- Blattaria
- Caloblattinidae
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Thuringoblatta sogdianensis
Vishnyakova 1998
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Vishnyakova 1998 | 1 specimen | ||||||||
| PIN 2031/20 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Kyrgyzstan | State/province: | Osh |
| Coordinates: | 40.0° North, 70.3° East (view map) | ||
| Paleocoordinates: | 36.5° North, 60.2° East | ||
| Basis of coordinate: | estimated from map | ||
| Geographic resolution: | outcrop |
Time
| Period: | Triassic | Epoch: | Middle Triassic |
| Stage: | Ladinian | 10 m.y. bin: | Triassic 2 |
| Key time interval: | Ladinian | ||
| Age range of interval: | 242.00000 - 237.00000 m.y. ago |
Stratigraphy
| Formation: | Madygen | ||||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: Aristov (2020): The age of the Madygen locality is usually reported as the Ladinian or Carnian of the Middle or Upper Triassic (Shcherbakov, 2008). This concept emerged, because I.A. Dobruskina (1995) did not discriminate between Ladinian and Carnian floras. Our data show that only three of the six families found at Madygen are known from younger sediments (Fig. 1), and therefore we can confirm the assumption of the Ladinian age of the Madygen locality (A.G. Ponomarenko, personal communication, 2018). | |||||
Lithology and environment
| Primary lithology: | lithified "siliciclastic" | ||
| Environment: | lacustrine - small | Tectonic setting: | rift |
| Geology comments: Oxbow lake. Madygen basin; tectonically-induced intermontane basin. Complex facies pattern consistent with active tectonics in upland region. | |||
Taphonomy
| Modes of preservation: | mold/impression |
| Size of fossils: | macrofossils,mesofossils |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 151569 | ||
| Authorizer: | M. Clapham | Enterer: | M. Clapham |
| Modifier: | M. Clapham | Research group: | paleoentomology |
| Created: | 2013-10-07 09:24:03 | Last modified: | 2020-10-10 22:05:20 |
| Access level: | the public | Released: | 2013-10-07 09:24:03 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 48441. | N. D. Sinitshenkova. 1987. Istopicheskoe razvitie vesiyanok. Akademiya Nauk SSSR, Trudy Paleontologicheskogo Instituta 221:1-142 [M. Clapham/M. Clapham] |
Secondary references:
| 49506 | V. N. Vishnyakova. 1998. Cockroaches (Insecta, Blattodea) from the Triassic Madygen locality, central Asia. Paleontological Journal 32:505-512 [M. Clapham/M. Clapham] |