Arkhara (PIN collection 5142) (Paleocene of Russian Federation)

Where: Russian Federation (49.4° N, 130.1° E: paleocoordinates 52.1° N, 118.2° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Darmakan Formation (Tsagayan Group), Danian (66.0 - 61.6 Ma)

• 66±1 Ma U-Pb age average obtained by LA-ICP-MS dating of single igneous zircons from a tuff bed located in the uppermost part of the Middle Tsagayan Subformation (Knittel et al., 2013). Upper Tsagayan = lower part of Darmakan Fm.

Environment/lithology: terrestrial; lithified siliciclastic sediments

Size classes: macrofossils, mesofossils

Preservation: mold/impression, adpression

Collected by E.V. Bugdaeva; reposited in the PIN

Primary reference: P. Vršanský, L. Vidlička, P. Barna, E. Bugdaeva, and V. Markevich. 2013. Paleocene origin of the cockroach families Blaberidae and Corydiidae: evidence from Amur River region of Russia. Zootaxa 3635(2):117-126 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 152011: authorized by Matthew Clapham, entered by Matthew Clapham on 02.11.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Insecta
 Blattodea - Blaberidae
Morphna paleo n. sp. Vršanský et al. 2013 giant cockroach
PIN 5142/12
 Trichoptera -
Folindusia (Acrindusia) phryganoides Sukatsheva 2016 caddisfly
PIN 5142/10, 11