Where: Buryatia, Russian Federation (52.3° N, 109.2° E: paleocoordinates 56.9° N, 109.3° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Uda Formation, Oxfordian to Oxfordian (163.5 - 152.1 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; lithified siliciclastic sediments

Size classes: macrofossils, mesofossils

Preservation: adpression

Collected by V.M. Skoblo in 1969; reposited in the PIN

Primary reference: N. D. Sinitshenkova. 1985. Jurskie podenki (Ephemerida-Ephemeroptera) yuzhnoy Sibiri i zapadnoy Mongolii. In A. P. Rasnitsyn (ed.), Jurskie Nasekomye Sibiri i Mongolii 11-23 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 125135: authorized by Matthew Clapham, entered by Arram Noshirvan on 05.03.2012, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)