Earth:Svanbergfjellet Formation
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| Svanbergfjellet Formation Stratigraphic range: 791.1±4.9 Ma[1] | |
|---|---|
| Type | Formation |
| Unit of | Akademikerbreen Group |
| Underlies | Draken Formation |
| Overlies | Grudievbreen Formation |
| Location | |
| Region | Svalbard |
| Country | Norway |
The Svanbergfjellet Formation is a geologic formation in Svalbard. It preserves eukaryotic fossils dating back to the Late Tonian period, around 790 Ma.
Paleobiota
After Butterfield et al, 1994.[2] Template:Paleobiota-key-compact
| Paleobiota | ||||
|---|---|---|---|---|
| Genus | Species | Notes | Images | |
| Proterocladus |
|
Filamentous green algae, another species is the earliest such fossil found | .jpg) | |
| Palaeastrum |
|
Filamentous eukaryote, possibly a green alga. |  | |
| Pseudotawuia |
|
Enigmatic eukaryote, bears two unusual kidney-shaped structures at its tip. | ||
| Tawuia |
|
Enigmatic eukaryote, possibly an alga. | ||
| Valkyria |
|
Filamentous eukaryote, bears several differentiated cells/cell types, possibly placing it at tissue-grade organisation?[2] | ||
| Cerebrosphaera |
|
Acritarch | ||
| Chuaria |
|
Acritarch | ||
| Cymatiosphaeroides |
|
Acritarch | ||
| Dictyotidium |
|
Acritarch | ||
| Germinosphaera |
|
Acritarch | ||
| Goniosphaeridium |
|
Acritarch | ||
| Gorgonisphaeridium |
|
Acritarch | ||
| Leiosphaeridia |
|
Acritarch | ||
| Osculosphaera |
|
Acritarch | ||
| Pterospermopsimorpha |
|
Acritarch | ||
| Trachyhystrichosphaera |
|
Acritarch | ||
| Gloeodiniopsis |
|
Cyanobacteria | ||
| Eoentophysalis |
|
Cyanobacteria | ||
| Polybessurus |
|
Cyanobacteria | ||
| Obruchevella |
|
Cyanobacteria | ||
| Eosynechococcus |
|
Cyanobacteria | ||
| Sphaerophycus |
|
Cyanobacteria | ||
| Cephalonyx |
|
Cyanobacteria | ||
| Cyanonema |
|
Cyanobacteria | ||
| Oscillatoriopsis |
|
Cyanobacteria | ||
| Palaeolyngbya |
|
Cyanobacteria | ||
| Siphonophycus |
|
Cyanobacteria | ||
| Tortunema |
|
Cyanobacteria | ||
| Brachypleganon |
|
Cyanobacteria | ||
| Chlorogloeaopsis |
|
Cyanobacteria | ||
| Digitus |
|
Cyanobacteria | ||
| Myxococcoides |
|
Cyanobacteria | ||
| Ostiana |
|
Cyanobacteria | ||
| Palaeosiphonella |
|
Cyanobacteria | ||
References
- ↑ Mughal, Sanaa; Millikin, Alexie E. G.; Zhang, Tianran; Gibson, Timothy M.; Rooney, Alan D.; Tosca, Nicholas J.; Bergmann, Kristin D.; Strauss, Justin V. et al. (25 February 2025). "The Svanbergfjellet Formation: eukaryotic life in a Tonian Sea". Journal of the Geological Society 182 (3). doi:10.1144/jgs2024-083.
- ↑ 2.0 2.1 Butterfield, Nicholas J.; Knoll, Andrew H.; Swett, Keene (15 July 1994). "Paleobiology of the Neoproterozoic Svanbergfjellet Formation, Spitsbergen". Fossils and Strata 34. doi:10.18261/8200376494-1994-01.
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