Popigay River, section 23, bed 1: Late/Upper Valanginian, Russian Federation
collected by Bogomolov 1984

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Cephalopoda - Ammonitida - Polyptychitidae
Polyptychites (Polyptychites) polyptychus (Keyserling 1846)
Polyptychites (Paleodichotomites) triplodiptychus (Pavlow 1892)
Polyptychites (Dichotomites) bidichotomus (d'Orbigny 1841)
recombined as Dichotomites (Dichotomites) bidichotomus
Cephalopoda - Ammonitida - Bochianitidae
Bochianites sp. Lory 1898
Bivalvia - Pectinida - Buchiidae
Buchia sublaevis
Bivalvia - Pectinida - Pectinidae
Mclearnia sp. Crickmay 1930
see common names

Geography
Country:Russian Federation
Coordinates: 72.8° North, 108.0° East (view map)
Paleocoordinates:74.3° North, 87.5° East
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period:Cretaceous Epoch:Early/Lower Cretaceous
Stage:Valanginian 10 m.y. bin:Cretaceous 1
Key time interval:Late/Upper Valanginian Ammonoid zone: Bidichotomus
Age range of interval:139.80000 - 132.60000 m.y. ago
Stratigraphy
Stratigraphic resolution:bed
Stratigraphy comments: Triplodiptychus subzone
Lithology and environment
Primary lithology: lithified "shale"
Environment:marine indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Collectors:Bogomolov Collection dates:1984
Metadata
Database number:189643
Authorizer:M. Clapham Enterer:M. Clapham
Research group:marine invertebrate
Created:2017-11-04 14:20:56 Last modified:2017-11-04 14:20:56
Access level:the public Released:2017-11-04 14:20:56
Creative Commons license:CC BY
Reference information

Primary reference:
59553. 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]