Madygen, PIN collection 5343, Dzhailoucho area (Triassic of Kyrgyzstan)

Where: Osh, Kyrgyzstan (40.1° N, 70.2° E: paleocoordinates 36.5° N, 60.1° E)

• coordinate based on nearby landmark

• 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

Collected by A.S. Shmakov et al. in 2009; reposited in the PIN

Primary reference: D. S. Kopylov. 2014. New sawflies of the subfamily Madygellinae (Hymenoptera, Xyelidae) from the Middle-Upper Triassic of Kyrgyzstan. Paleontological Journal 48:610-620 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 163986: authorized by Matthew Clapham, entered by Matthew Clapham on 22.11.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

Insecta
 Dicondylia - Kennedyidae
Kennedya ferganensis n. sp.4 Felker 2022 winged insect
PIN 5343/195
 Reculida - Sylvaphlebiidae
Batkenopterum kirgizicum n. gen. n. sp.2
Batkenopterum kirgizicum n. gen. n. sp.2 Aristov 2020 winged insect
PIN 5343/172
 Hymenoptera - Xyelidae
Xyelidae indet.3 Newman 1834 sawfly
PIN 5343/2, 11
Triassoxyela sharovi n. sp.3 Denisova et al. 2023 sawfly
PIN 5343/158
Microxyela minuta n. gen. n. sp.3 Denisova et al. 2023 sawfly
PIN 5343/5
Xyelinus scherbachov n. sp.3 Denisova et al. 2023 sawfly
PIN 5343/4
Ferganoxyela sp.3 Rasnitsyn 1969 sawfly
PIN 5343/3
Ferganoxyela destructa3 Rasnitsyn 1969 sawfly
PIN 5343/1
Samarkandykia shmakovi n. sp. Kopylov 2014 sawfly
PIN 5343/10
Samarkandykia ryzhkovae n. gen. n. sp. Kopylov 2014 sawfly
PIN 5343/8
Madygella levivenosa n. sp. Kopylov 2014 sawfly
PIN 5343/12
Madygella aristovi n. sp. Kopylov 2014 sawfly
PIN 5343/9
Madygella bashkuevi n. sp. Kopylov 2014 sawfly
PIN 5343/7
 Cnemidolestodea - Sylvabestiidae
Aiban kichineis n. gen. n. sp.1
Aiban kichineis n. gen. n. sp.1 Aristov 2018 winged insect
PIN 5343/14