K1962, Søre Russøya, Murchisonfjorden: Tonian, Svalbard and Jan Mayen

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Hormogoneae
Siphonophycus kestron Schopf 1968
Eomycetopsis robusta Schopf 1968
recombined as Siphonophycus robustum
unclassified
Myxococcoides spp.
see common names

Geography
Country:Svalbard and Jan Mayen
Coordinates: 80.0° North, 18.3° East (view map)
Paleocoordinates:0.0° North, 0.0° East
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period:Tonian
Key time interval:Tonian
Age range of interval:1000.00000 - 720.00000 m.y. ago
Stratigraphy
Geological group:Roaldtoppen Formation:Ryssö
Stratigraphic resolution:bed
Stratigraphy comments: Equivalent to the upper part of the Akademikerbreen Group. No direct age constraints from Svalbard, but chemostratigraphic correlations suggest a late Tonian age (<800 Ma).
Lithology and environment
Primary lithology:stromatolitic lithified cherty/siliceous dolomite
Environment:peritidal
Geology comments: Coastal carbonate flat environments ranging from intertidal to very shallow subtidal marine
Taphonomy
Modes of preservation:body,permineralized,original carbon,replaced with silica
Size of fossils:microfossils
Collection methods and comments
Collection methods:peel or thin section
Reason for describing collection:taxonomic analysis
Collection method comments: Repository: Harvard University Paleobotany Collection
Metadata
Database number:227771
Authorizer:M. Clapham Enterer:M. Clapham
Created:2022-10-29 22:50:14 Last modified:2022-10-29 22:50:14
Access level:the public Released:2022-10-29 22:50:14
Creative Commons license:CC BY
Reference information

Primary reference:
72866. A. H. Knoll and S. Calder. 1983. Microbiotas of the late Precambrian Ryssö Formation, Nordaustlandet, Svalbard. Paleontology 26:467-496 [P. Cohen/M. Hernandez/M. Clapham]