Ichetuy-II (PIN collection 3611) (Jurassic of Russian Federation)

Also known as Ichetui

Where: Buryatia, Russian Federation (50.6° N, 105.4° E: paleocoordinates 54.8° N, 106.2° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Ichetuy Formation, Oxfordian (163.5 - 157.3 Ma)

• Insect workers often assign a late Early Jurassic-early Middle Jurassic (or Toarcian-Aalenian) age but radiometric dating of Ichituy Fm volcanics gives ages of 159-156 Ma.

• group of beds-level stratigraphic resolution

Environment/lithology: lacustrine; lithified siliciclastic sediments

Size class: macrofossils

Preservation: mold/impression, adpression

Collected by I.N. Srebrodolskiy in 1970; reposited in the PIN

Primary reference: Y. A. Popov. 1985. Yurskie klopy i peloridiinovye yuzhnoy Sibiri i zapadnoy Mongolii. In A. P. Rasnitsyn (ed.), Jurskie Nasekomye Sibiri i Mongolii 28-47 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 125403: authorized by Matthew Clapham, entered by Matthew Clapham on 09.03.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

 Hemiptera - Corixidae
Karataviella samkhakensis Popov 1985 water boatman
PIN 3611/8
 Plecoptera - Mesoleuctridae
Mesoleuctroides saturatus2 Sinitshenkova 1985 stonefly
PIN 3611/3
 Coleoptera -
Mesosperchus angulatus1 Ponomarenko 1985 beetle
PIN 3611/2
? Cupedites sp.1 Ponomarenko 1985 beetle
PIN 3611/1