Khey-Yaga, outcrop no. 196 (PIN collection 5252) (Triassic of Russian Federation)

Where: Arkhangelsk, Russian Federation (68.4° N, 62.4° E: paleocoordinates 45.1° N, 30.0° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Nyadeita Formation, Olenekian (251.2 - 247.2 Ma)

• Lower Triassic, upper Vetlugian (?), lower subformation of Lestanshor Formation (Novikov, 1991).

•Ustmylian, Lower Olenekian, Lower Triassic (Ivakhnenko, 2008).

•The most acceptable age for this assemblage of beetle elytra can be the Late Olenekian.

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; gray, argillaceous shale

Size classes: macrofossils, mesofossils

Preservation: mold/impression

Reposited in the PIN

Primary reference: A. G. Ponomarenko. 2008. New Triassic Beetles (Coleoptera) from Northern European Russia. Paleontological Journal 42(6):600-606 [M. Clapham/J. Karr]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 108308: authorized by Matthew Clapham, entered by Jered Karr on 27.04.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

• Ponomarenko states that abundant horsetail fossils are also present.
Insecta
 Hemiptera -
 Dicondylia -
Blattodea indet. Latreille 1810 cockroach
 Coleoptera - Schizocoleidae
Schizocoleus cf. septentrionalis Ponomarenko 2008 beetle
PIN 5252/8, 5
Pseudochrysomelites dilatatus n. sp. Ponomarenko 2008 beetle
PIN 5252/9, 4
Pseudochrysomelites anser n. sp. Ponomarenko 2008 beetle
PIN 5252/10
Pseudochrysomelites planus n. sp. Ponomarenko 2008 beetle
PIN 5252/3
Stegosyne borealis n. sp. Ponomarenko 2008 beetle
PIN 5252/6
 Coleoptera - Asiocoleidae
Tetracoleus tshalyshevi n. gen. n. sp. Ponomarenko 2008 beetle
PIN 5252/1
Tetracoleus minimus n. sp. Ponomarenko 2008 beetle
PIN 5252/2