Calvinia: Artinskian, South Africa
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Elonichthyiformes
- Acrolepidae
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? Acrolepidae indet.
Aldinger 1937
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| SAM 8494 | ||||||||||
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Palaeonisciformes
- Palaeoniscidae
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Palaeoniscum capensis
Broom 1913
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| SAM 1061; SAM 1062 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | South Africa | State/province: | Northern Cape | County: | Hantam |
| Coordinates: | 31.5° South, 19.8° East (view map) | ||||
| Paleocoordinates: | 58.6° South, 45.5° West | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | hand sample |
Time
| Period: | Permian | Epoch: | Cisuralian |
| Stage: | Artinskian | 10 m.y. bin: | Permian 2 |
| Key time interval: | Artinskian | ||
| Age range of interval: | 290.1 - 283.5 m.y. ago |
Stratigraphy
| Geological group: | Ecca | Formation: | Whitehill | ||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Radiometric ages of the Collinson Fm. (overlying the Whitehill Fm.) vary between 270 and 275 Ma (Turner, 1999, J. Afr. Earth Sci. 28(1); Fildani et al., 2007 J. Sedim. Res. 77), and radiometric ages of the basal beds of the Prince Albert Fm. (underlying the Whitehill Fm.) vary between 293 and 285 Ma (Bangert et al., 1999, J. Afr. Earth Sci. 29(1)), implying an Artinskian age for the Whitehill Fm. (cf. time scales of Gradstein et al. (2004) and Ogg et al. (2008)). Radiometric dating within the Whitehill Fm. of southern Namibia (Werner, 2006, PhD thesis, http://www.opus-bayern.de/uni-wuerzburg/volltexte/2007/2175/pdf/00-Complete_thesis-STD.pdf) corroborates an assigment to the Artinskian. | |||||
Lithology and environment
| Primary lithology: | black lithified carbonaceous mudstone | ||
| Includes fossils? | Y | ||
| Lithology description: "black, carbonaceous shale or mudrock | |||
| Environment: | marine indet. | Tectonic setting: | foreland basin |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | variable |
| Articulated whole bodies: | none |
| Temporal resolution: | time-averaged |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: SAM = South African Museum, Cape Town | |
Metadata
| Database number: | 231837 | ||
| Authorizer: | E. Dunne | Enterer: | S. Fasey |
| Modifier: | S. Fasey | Research group: | vertebrate |
| Created: | 2023-09-19 10:36:02 | Last modified: | 2023-09-19 10:51:55 |
| Access level: | the public | Released: | 2023-09-19 10:36:02 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 82370. | F. J. Evans. 2005. Taxonomy, palaeoecology and palaeobiogeography of some palaeozoic fish of Southern Gondwana. [E. Dunne/S. Fasey/S. Fasey] |