Where: Soderfjarden, Finland (63.0° N, 21.6° E: paleocoordinates 44.4° S, 18.4° W)
• coordinate based on political unit
When: Cambrian (541.0 - 485.4 Ma)
• This is a description of the "sedimentary sequence" of the rocks of Soderfjarden. Little else is said about the rocks, including formation names.
• group of beds-level stratigraphic resolution
Environment/lithology: lithified sandstone and shale
Size class: microfossils
Collection methods: core,
Primary reference: R. Tynni. 1978. Lower Cambrian fossils and acritarchs in the sedimentary rocks of Soderfjarden, Western Finland. Geological Society of Finland, Bulletin 297:39-81 [M. Patzkowsky/Z. Krug/Z. Krug]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 41196: authorized by Mark Patzkowsky, entered by Zack Krug on 08.07.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
| unclassified | |
| Prasinophytae | |
|
Tasmanites sp. Newton 1875 | |
Acanthodiacrodium sp., Comasphaeridium sp., Micrhystridium sp., Leiomarginata sp., Cymatiosphaera sp., Leiosphaeridia sp.
Acanthodiacrodium sp. Timofeev 1958 acritarcs
Comasphaeridium sp. Staplin et al. 1965 acritarcs
Micrhystridium sp. Naumova 1968 acritarcs
Leiomarginata sp. Naumova 1961 acritarcs
Cymatiosphaera sp. Wetzel and Deflandre 1954 acritarcs
Leiosphaeridia sp. Eisenack 1958 acritarcs | |
| Granomarginata | |
|
Granomarginata sp. Naumova 1960 | |
| Dinophyceae | |
|
Hystrichosphaeridium sp. Deflandre 1936 | |