Vtoraya Sentyabrskaya river (seimkanense zone, TsGM coll) (Triassic of Russian Federation)

Where: Russian Federation (60.3° N, 148.5° E: paleocoordinates 83.4° N, 36.5° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: seimkanense ammonoid zone, Julian (235.0 - 232.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified siliciclastic sediments

Size class: macrofossils

Collected by Yu. M. Bychkov in 1968

• Repository: TsGM (Central Scientific and Geological Museum, St. Petersburg)

Primary reference: Y. M. Bychkov. 1973. Novye pozdnetriasovye trakhitseratidy severo-vostoka SSSR. Kolyma 1973(10):35-38 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 151094: authorized by Matthew Clapham, entered by Matthew Clapham on 21.09.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Cephalopoda
 Ceratitida - Trachyceratidae
"Striatosirenites seimkanensis n. sp." = Arctosirenites canadensis, "Protrachyceras seimkanense n. sp." = Okhototrachyceras seimkanense, Neosirenites pseudopentastichus n. sp., Striatosirenites ulynensis n. sp.
"Striatosirenites seimkanensis n. sp." = Arctosirenites canadensis Tozer 1961 ceratite
"Protrachyceras seimkanense n. sp." = Okhototrachyceras seimkanense Bychkov 1973 ceratite
Neosirenites pseudopentastichus n. sp. Bychkov 1973 ceratite
Striatosirenites ulynensis n. sp. Bychkov 1973 ceratite