Triasovyy creek, Kenkeren Ridge, Koryak (upper Nutekin Fm) (Triassic to of Russian Federation)

Where: Russian Federation (63.4° N, 177.0° E: paleocoordinates 55.5° N, 71.2° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Upper Member (Nutekin Formation), Lacian to Lacian (221.5 - 212.0 Ma)

• Upper Nutekin Formation, lower-middle Norian

• group of beds-level stratigraphic resolution

Environment/lithology: lithified limestone

Size class: macrofossils

Collected by Yu. M. Bychkov in 1982

• Repository: SVPGO (North-Eastern Production Geological Association museum)

Primary reference: Y. M. Bychkov. 1985. Pozdnetriasovye mollyuski Khrebta Kenkeren (Koryakskoe Nagorye). Dvustvorchatye i Golovonogie Mollyuski Mezozoya Severo-Vostoka SSSR 5-24 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 136158: authorized by Matthew Clapham, entered by Matthew Clapham on 20.11.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Pectinida - Pectinoidae
Ochotochlamys polubotkae n. sp. Bychkov 1985 scallop
 Pectinida - Aviculopectinidae
Neopecten oxytomaeformis n. gen. n. sp.
Neopecten oxytomaeformis n. gen. n. sp. Bychkov 1985 scallop
 Pectinida - Heteropectinidae
 Ostreida - Gryphaeidae
Gryphaea kenkerensis n. sp. Bychkov and Nechitailenko 1985 oyster
 Ostreida - Pinnidae
Pinna aff. lima Boehm 1903 oyster
 Cardiida - Cardiidae
Septocardia aff. typica Hall and Whitfield 1877 cockle
 Trigoniida - Trigoniidae
Maoritrigonia beringica n. sp. Bychkov 1985 clam
Cephalopoda
 Ceratitida - Trachyceratidae
? Pseudosirenites sp. Arthaber 1911 ceratite