Madygen, PIN collection 1225, Madygen area: Ladinian, Kyrgyzstan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Insecta
- Coleoptera
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Rhabdocupes baculatus
Ponomarenko 1969
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1 specimen | |||||||||
| PIN 1225/534 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Kyrgyzstan | State/province: | Osh |
| Coordinates: | 40.0° North, 70.3° East (view map) | ||
| Paleocoordinates: | 38.4° North, 80.0° East (Wright 2013) | ||
| 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 - 237 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
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 122948 | ||
| Authorizer: | M. Clapham | Enterer: | M. Clapham |
| Modifier: | M. Clapham | Research group: | paleoentomology |
| Created: | 2012-01-07 18:13:12 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2012-01-07 18:13:12 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 8974. | ETE | A. G. Ponomarenko. 1969. Istoricheskoe Razvitie Zhestkokrylykh-Arkhostemat [Historical Development of the Archostomate Beetles]. Trudy Akademiya Nauk SSSR 125:1-240 [C. Labandeira/A. Spencer-Lee/M. Clapham] |