Where: Russian Federation (73.4° N, 113.8° E: paleocoordinates 75.7° N, 91.6° E)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Quadrifidus ammonoid zone, Early/Lower Valanginian (140.2 - 136.4 Ma)
• group of beds-level stratigraphic resolution
Environment/lithology: marine; lithified shale
Size class: macrofossils
Collected by Bogomolov in 1980
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 189628: authorized by Matthew Clapham, entered by Matthew Clapham on 03.11.2017
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
"Euryptychites (Propolyptychites) cf. quadrifidus" = Virgatoptychites (Propolyptychites) quadrifidus, "Euryptychites (Propolyptychites) stubendorffi" = Polyptychites (Siberiptychites) stubendorffi
"Euryptychites (Propolyptychites) cf. quadrifidus" = Virgatoptychites (Propolyptychites) quadrifidus Koenen 1902 ammonite
"Euryptychites (Propolyptychites) stubendorffi" = Polyptychites (Siberiptychites) stubendorffi Schmidt 1872 ammonite | |
Lagonibelus (Lagonibelus) cf. sibirica belemnite | |
Acroteuthis (Acroteuthis) arctica belemnite
Cylindroteuthis sp. belemnite | |
Bivalvia | |
Buchia sp. Rouillier 1845 scallop | |
"Limatula ex gr. consobrina" = Lima (Limatula) consobrina
"Limatula ex gr. consobrina" = Lima (Limatula) consobrina d'Orbigny 1845 file clam | |
Pinna sp. Linnaeus 1758 oyster |