Grootdriefontein (Dicynodon Assemblage Zone): Changhsingian, South Africa
collected by J. Kitching 1940
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Reptilia
- Millerettidae
|
||||||||||
|
Milleretta rubidgei
(Broom 1938)
|
1 individual | |||||||||
| R.C. 14b | ||||||||||
|
Procynosuchidae
|
||||||||||
|
Paracynosuchus rubidgei n. gen., n. sp.
Broom 1940
|
Kitching 1977 | 1 individual | ||||||||
| synonym of Procynosuchus delaharpeae | ||||||||||
| Fairly complete skull | ||||||||||
|
Gorgonopidae
|
||||||||||
|
Cyonosaurus cf. kitchingi
(Broom 1948)
|
Kitching 1977 | |||||||||
|
Anomodontia
- Cryptodontidae
|
||||||||||
|
Oudenodon bainii
Owen 1859
|
Kitching 1977 | |||||||||
|
Anomodontia
|
||||||||||
|
Dicynodon daptocephaloides n. sp.
Toerien 1955
|
Toerien 1955 | 1 individual | ||||||||
| synonym of Daptocephalus leoniceps | ||||||||||
| BP/1/555, a nearly complere skull | ||||||||||
|
Therocephalia
- Whaitsiidae
|
||||||||||
|
Whaitsia platyceps
Haughton 1918
|
Kitching 1977 | |||||||||
| synonym of Theriognathus microps | ||||||||||
| RC 380 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | South Africa | State/province: | Western Cape | County: | Central Karoo |
| Coordinates: | 31.9° South, 23.9° East (view map) | ||||
| Paleocoordinates: | 63.6° South, 26.2° West | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | small collection |
Time
| Period: | Permian | Epoch: | Lopingian |
| Stage: | Changhsingian | 10 m.y. bin: | Permian 4 |
| Key time interval: | Changhsingian | Zone: | Dicynodon Assemblage Zone |
| Age range of interval: | 254.14000 - 251.90200 m.y. ago | ||
| Age estimate: | maximum 255.2 Ma (U/Pb) |
Stratigraphy
| Geological group: | Beaufort | Formation: | Teekloof | ||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: It is said that the fossils come from the "Daptocephalus zone" (Gow, 1972) which is equivalent to the Dicynodon Assemblage Zone. Geographic and stratigraphic data suggest that the locality is in the Teekloof Formation of the Beaufort Group (see Catuneanu et al., 2005, J. Afr. Earth Sci., 43, figs. 24, 25). The Dicynodon AZ is Early and Middle Changhsingian according to Catuneanu et al. (2005).
Direct maximum date for the Dicynodon Aseemblage Zone from Rubidge et al., 2013 | |||||
Lithology and environment
| Primary lithology: | not reported |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | survey of museum collection | ||
| Reason for describing collection: | taxonomic analysis | ||
| Collectors: | J. Kitching | Collection dates: | 1940 |
| Collection method comments: R.C. = "S. H. Rubidge collection housed on the farm Wellwood near Graff Reinet" (Gow, 1972) | |||
| Taxonomic list comments:Gow (1972) lists all specimens of Milleretta rubidgei, except the type, as "Milleretta" without a specific epithet. Since Mileretta is a monospecific genus all specimens listed as "Milleretta" by Gow (1972) are listed as "Milleretta rubidgei" in the taxomomic list. | |||
Metadata
| Also known as: | Groot Driefontein | ||
| Database number: | 80223 | ||
| Authorizer: | J. Mueller, R. Butler | Enterer: | J. Dummasch, J. Benito Moreno |
| Modifier: | J. Benito Moreno | Research group: | vertebrate |
| Created: | 2008-04-09 05:43:16 | Last modified: | 2015-11-26 06:16:07 |
| Access level: | authorizer only | Released: | 2011-04-09 05:43:16 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 26960. | C. E. Gow. 1972. The osteology and relationships of the Millerettidae (Reptilia: Cotylosauria). Journal of Zoology, London 167:219-264 [J. Mueller/J. Dummasch] |
Secondary references:
| 27216 | J. W. Kitching. 1977. The distribution of the Karroo vertebrate fauna. Memoirs of the Bernard Price Institute for Palaeontological Research 1:1-131 [H. Sims/J. Camp] | |
| 58107 | M. J. Toerien. 1955. Important New Anomodontia. Palaeontologia Africana 3:65-72 [R. Butler/J. Benito Moreno] |