Madygen, PIN collection 970, Madygen (Triassic of Kyrgyzstan)

Where: Osh, Kyrgyzstan (40.0° N, 70.3° E: paleocoordinates 36.5° N, 60.2° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Madygen Formation, Ladinian (242.0 - 237.0 Ma)

• 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).

• group of beds-level stratigraphic resolution

Environment/lithology: lacustrine - small; lithified siliciclastic sediments

• Oxbow lake. Madygen basin; tectonically-induced intermontane basin. Complex facies pattern consistent with active tectonics in upland region.

Size classes: macrofossils, mesofossils

Preservation: mold/impression

Reposited in the PIN

Primary reference: V. N. Vishnyakova. 1998. Cockroaches (Insecta, Blattodea) from the Triassic Madygen locality, central Asia. Paleontological Journal 32:505-512 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 153451: authorized by Matthew Clapham, entered by Matthew Clapham on 18.12.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Insecta
 Blattaria - Caloblattinidae
Thuringoblatta sogdianensis Vishnyakova 1998 cockroach
PIN 970/85