Levyi Suol P-T boundary section (2-3m) (Permian of Russian Federation)

Also known as Setorym / upper Vostochnaya Khandyga river basin

Where: Sakha, Russian Federation (63.2° N, 139.2° E: paleocoordinates 73.9° N, 31.5° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Nekuchan Formation, Changhsingian (254.2 - 252.2 Ma)

• 2-3m above the base of the Nekuchan Formation

• bed-level stratigraphic resolution

Environment/lithology: marine; concretionary mudstone

• Argillite with mud-calcareous concretions (Biakov et al. 2018)

Size classes: macrofossils, microfossils

Preservation: mold/impression

Collected in 2017

Primary reference: A. S. Biakov, R. V. Kutygin, N. A. Goryachev, S. S. Burnatny, A. N. Naumov, A. V. Yadrenkin, I. L. Vedernikov, M. F. Tretyakov, and I. V. Brynko. 2018. Discovery of the Late Changhsingian Bivalve Complex and Two Fauna Extinction Episodes in Northeastern Asia at the End of the Permian. Doklady Biological Sciences 480:78-81 [A. Dunhill/B. Allen]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 206757: authorized by Alex Dunhill, entered by Bethany Allen on 28.11.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Foraminifera
 Ammodiscoidea - Ammodiscidae
Ammodiscus septentrionalis, Glomospirella indskiensis, Glomospirella ex gr. shengi, Glomospira deplanata
Cephalopoda
 Ceratitida - Otoceratidae
Otoceras sp.
Otoceras sp. Griesbach 1880 ceratite
Bivalvia
 Nuculanida - Sareptidae
? Sarepta sp.
? Sarepta sp. Adams 1860 clam
 Nuculanida - Malletiidae
? Malletia sp.
? Malletia sp. des Moulins 1832 clam
 Nuculanida - Nuculanidae
"Dacryomya sp." = Dacromya
"Dacryomya sp." = Dacromya Agassiz 1840 pointed nut clam
 Myalinida - Atomodesmatidae
Maitaia cf. errabunda
Maitaia cf. errabunda Popov 1964 clam
 Myalinida - Myalinidae
"Myalina aff. putiatinensis" = Promyalina putiatinensis
"Myalina aff. putiatinensis" = Promyalina putiatinensis Kiparisova 1938 clam