Talsoi River, south of Rampura: Statherian, India

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Tasmanites vindhyanensis n. sp. Maithy and Shukla 1977
Kildinella minuta n. sp. Maithy and Shukla 1977
Kildinella suketensis n. sp. Maithy and Shukla 1977
Zonosphaeridium punctatum n. sp. Maithy and Shukla 1977
Symplassosphaeridium bulbosum n. sp. Maithy and Shukla 1977
Orygmatosphaeridium plicatum n. sp. Maithy and Shukla 1977
Vavosphaeridium vindhyanensis (Maithy 1969)
Protosphaeridium volkovae n. sp. Maithy and Shukla 1977
Protosphaeridium densum Timofeev 1966
Nucellosphaeridium zonatum n. sp. Maithy and Shukla 1977
Nucellosphaeridium minimum n. sp. Maithy and Shukla 1977
Archaeofavosina reticulata n. sp. Maithy and Shukla 1977
Granomarginata rotata n. sp. Maithy and Shukla 1977
Hormogoneae - Oscillatoriales - Oscillatoriaceae
Oscillatoriopsis psilata n. sp. Maithy and Shukla 1977
Eomycetopsis pflugii n. sp. Maithy and Shukla 1977
Eomycetopsis reticulata n. sp. Maithy and Shukla 1977
Eomycetopsis psilata n. sp. Maithy and Shukla 1977
Palaeoscytonema srivastavae n. gen., n. sp. Maithy and Shukla 1977
unclassified
Myxococcoides magnus n. sp. Maithy and Shukla 1977
Myxococcoides ramapuraensis n. sp. Maithy and Shukla 1977
Myxococcoides globosa n. sp. Maithy and Shukla 1977
Coccogoneae - Chroococcales - Chroococcaceae
Aphanocapsaopsis ramapuraensis n. sp. Maithy and Shukla 1977
Aphanocapsaopsis sitholeyii n. gen., n. sp. Maithy and Shukla 1977
unclassified
cf. Kakabekia sp. Barghoorn 1965
Chlorococcaceae
Palaeoanacystis punctatus n. sp. Maithy and Shukla 1977
Palaeoanacystis reticulatus n. sp. Maithy and Shukla 1977
Palaeoanacystis verrucosus n. sp. Maithy and Shukla 1977
Palaeoanacystis suketensis n. sp. Maithy and Shukla 1977
see common names

Geography
Country:India State/province:Madhya Pradesh
Coordinates: 24.5° North, 75.5° East (view map)
Paleocoordinates:0.0° North, 0.0° East
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period: Statherian
Key time interval: Statherian
Age range of interval: 1800 - 1600 m.y. ago
Age estimate: 1630.7 ± 0.8 to 1599 ± 8 Ma (U/Pb)
Stratigraphy
Geological group:Semri Formation:Suket Shale
Stratigraphic resolution:group of beds
Stratigraphy comments: Constrained by U-Pb SHRIMP radiometric dates of 1593 +/- 12 Ma (lower tuff RP/4) and 1602 +/- 10 Ma (upper tuff RP/5, several meters above RP/4) rom the top of the correlative Rampur Shale, and 1628 +/- 8 Ma from the underlying Deonar Porcellanite Formation (Rasmussen et al. 2002). Taking the two closely-spaced Rampur tuff beds together, Rasmussen et al. (2002) estimated an age of 1599 +/- 8 Ma for the top of the unit. Ray et al. (2002) dated two ash beds from the Deonar Formation using U-Pb TIMS, yielding 1631.2 +/- 5.6 Ma and 1630.7 +/- 0.8 Ma.
Lithology and environment
Primary lithology:green lithified "shale"
Environment:marine indet.
Taphonomy
Modes of preservation:body,original carbon
Size of fossils:microfossils
Collection methods and comments
Collection methods:chemical,hydroflouric
Reason for describing collection:taxonomic analysis
Metadata
Database number:227768
Authorizer:M. Clapham Enterer:M. Clapham
Created:2022-10-29 20:40:34 Last modified:2022-10-29 20:40:34
Access level:the public Released:2022-10-29 20:40:34
Creative Commons license:CC BY
Reference information

Primary reference:
82960. P. K. Maithy and M. Shukla. 1977. Microbiota from the Suket Shales, Ramapura, Vindhyan System (late Pre-Cambrian), Madhya Pradesh. The Palaeobotanist 23:176-188 [M. Clapham/M. Clapham]