Popigay River, section 16, bed 2 (Cretaceous of Russian Federation)

Where: Russian Federation (72.8° N, 108.3° E: paleocoordinates 74.3° N, 87.7° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Ramulicosta ammonoid zone, Early/Lower Valanginian (140.2 - 136.4 Ma)

• Ramulicosta subzone

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified shale

Size class: macrofossils

Collected by Bogomolov in 1984

Primary reference: Y. I. Bogomolov. 1989. Poliptikhity (Ammonity) i biostratigrafiya boreal'nogo Valanzhina. Akademiya Nauk SSSR, Sibirskoe Otdelenie Trudy Instituta Geologii I Geofiziki 696:1-199 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 189642: authorized by Matthew Clapham, entered by Matthew Clapham on 04.11.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Pectinida - Pectinoidae
Mclearnia sp. Crickmay 1930 scallop
 Pectinida -
Entolium sp. Meek 1865 scallop
 Pectinida - Limidae
Limatula sp. Wood 1839 file clam
 Pectinida - Oxytomidae
Oxytoma sp. Meek 1864 scallop
 Pectinida - Buchiidae
Buchia sp. Rouillier 1845 scallop
 Carditida - Astartidae
Astarte sp. Sowerby 1816 clam
Cephalopoda
 Ammonitida - Polyptychitidae
"Siberites cf. rectangulatus" = Polyptychites (Primitiviptychites) rectangulatus Bogoslowsky 1902 ammonite
Euryptychites (Euryptychites) sp. Pavlow 1914 ammonite