Karangati Mountain, subrobustus zone, lower Olenek River (Triassic of Russian Federation)

Where: Russian Federation (72.9° N, 119.9° E: paleocoordinates 62.7° N, 19.9° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Keyserlingites subrobustus ammonoid zone, Spathian (251.3 - 247.2 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified siliciclastic sediments

Size class: macrofossils

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

Primary reference: E. S. Sobolev. 1989. Triasovye nautilidy severo-vostochnoy Azii. Akademiya Nauk SSSR, Sibirskoe Otdelenie Trudy Instituta Geologii I Geofiziki 727:1-193 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 166613: authorized by Matthew Clapham, entered by Matthew Clapham on 19.02.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Nautilida - Tainoceratidae
Phaedrysmocheilus involutus Sobolev 1989 nautiloid
Phaedrysmocheilus subaratus Keyserling 1847 nautiloid