7000/77, Uslon Section: Botomian, Russian Federation

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Fordillida - Fordillidae
Helcionelloida - Helcionellida - Trenellidae
Helcionelloida - Helcionellida - Yochelcionellidae
Helcionelloida - Helcionellidae
see common names

Geography
Country:Russian Federation State/province:Chitinskaya oblast County:Transbaikalia
Coordinates: 52.0° North, 119.0° East (view map)
Paleocoordinates:12.9° North, 54.9° West (Wright 2013)
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period: Cambrian Epoch: Series 2
10 m.y. bin: Cambrian 2-3
Key time interval: Botomian
Age range of interval: 516 - 512.1 m.y. ago
Stratigraphy
Formation:Bystraya Member:VI
Regional section:Uslon
Stratigraphic resolution:bed
Stratigraphy comments: Early Botomian
Lithology and environment
Primary lithology: "limestone"
Lithology description: 500 meter thick middle subformation composed of dark gray limetsone or, more rarely, of dolostone with interbeds of clayish shale with phosphorites.
Environment:carbonate indet.
Taphonomy
Size of fossils:macrofossils,microfossils
Collection methods and comments
Collection excludes:all macrofossils,some microfossils
Collection methods:bulk,acetic
Reason for describing collection:taxonomic analysis
Metadata
Also known as:Georgievka, ~380 km NNE of Krasnokamensk, Eastern Transbaikalia. 10 meters NE from C-84/8
Database number:49386
Authorizer:P. Wagner Enterer:P. Wagner
Modifier:J. Alroy Research group:marine invertebrate
Created:2005-04-14 12:49:04 Last modified:2025-02-22 15:12:02
Access level:the public Released:2005-04-14 12:49:03
Creative Commons license:CC0
Reference information

Primary reference:
13185. P. Y.u. Parkhaev. 2004. Malacofauna of the Lower Cambrian Bystraya Formation of Eastern Transbaikalia. Paleontological Journal 38(6):590-608 [P. Wagner/P. Wagner/P. Wagner]