Nyykaabyt River, outcrop 41, layer 4, Lower Olenek river basin (Triassic of Russian Federation)

Where: Russian Federation (73.0° N, 119.7° E: paleocoordinates 62.7° N, 19.9° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Boreoceras demokidovi ammonoid zone, Ysmanakh Formation, Spathian (251.3 - 247.2 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified siliciclastic sediments

Size class: macrofossils

Collection methods: Repository: IGiG (Institute for Geology and Geophysics, Novosibirsk)

Primary reference: A. S. Dagys and N. I. Kurushin. 1985. Triasovye brakhiopody i dvustvorchatye mollyuski severa sredney Sibiri. Akademiya Nauk SSSR, Sibirskoe Otdelenie Trudy Instituta Geologii I Geofiziki 633:1-160 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 135853: authorized by Matthew Clapham, entered by Matthew Clapham on 11.11.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Nuculida - Nuculidae
Palaeonucula prisca n. sp. Kurushin 1985 nut clam
 Protobranchia - Nuculanidae
Nuculana (Jupiteria) asiatica Kurushin 1985 pointed nut clam