Houdkonstant (Dicynodon Assemblage Zone): Wuchiapingian - Changhsingian, South Africa
collected by J. Kitching 1945
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
- Millerettidae
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Nanomilleretta kitchingi n. gen., n. sp.
Broom and Robinson 1948
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1 individual | |||||||||
| BP/1/7 (type) | ||||||||||
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Reptilia
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Pareiasaurus serridens
Owen
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Kitching 1977 | |||||||||
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Therocephalia
- Whaitsiidae
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Whaitsia platyceps
Haughton 1918
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Kitching 1977 | |||||||||
| SAM-PK-K7453 | ||||||||||
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Anomodontia
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Dicynodon nanus
Broom 1936
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Kitching 1977 | |||||||||
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Dicynodon weatherbyi n. sp.
Broom 1941
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Broom 1941 | |||||||||
| MMK 5264, a crushed skull | ||||||||||
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Daptocephalus leoniceps
(Owen)
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Kitching 1977 | |||||||||
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Anomodontia
- Cryptodontidae
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Oudenodon bainii
Owen 1859
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Kitching 1977 | |||||||||
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Pelanomodon moschops
(Broom 1913)
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Kitching 1977 | |||||||||
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Aulacephalodon bainii
(Owen 1845)
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Kitching 1977 | |||||||||
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Gorgonopidae
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Sycosaurus brodiei n. sp.
Broom 1941
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Kammerer 2016 | 1 individual | ||||||||
| TM 1493 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | South Africa | State/province: | Eastern Cape | County: | Camdeboo |
| Coordinates: | 32.0° South, 24.2° East (view map) | ||||
| Paleocoordinates: | 62.8° South, 28.4° West | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Geographic resolution: | small collection |
Time
| Period: | Permian | Epoch: | Lopingian |
| Stage: | Wuchiapingian - Changhsingian | 10 m.y. bin: | Permian 4 |
| Key time interval: | Wuchiapingian - Changhsingian | Other zone: | Daptocephalus |
| Age range of interval: | 259.51 - 251.902 m.y. ago | ||
| Age estimate: | maximum 255.2 Ma (U/Pb) |
Stratigraphy
| Geological group: | Beaufort | Formation: | Balfour | ||
| 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 Balfour Formation of the Beaufort Group (see Catuneanu et al., 2005, J. Afr. Earth Sci., 43, figs. 24, 25). The Dicynodon AZ is late Wuchiapingian to Changsinghian according to recent radioisoptic dating.
Direct maximum date for the Dicynodon Assemblage Zone from Rubidge et al., 2013. | |||||
Lithology and environment
| Primary lithology: | green calcareous mudstone | ||
| Includes fossils? | Y | ||
| Lithology description: "All the specimens are preserved in fine-grained green mudstone which may or may not form a nodule surrounding the specimen." (Gow, 1972). | |||
| Environment: | terrestrial indet. | Tectonic setting: | foreland basin |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | poor |
| Articulated whole bodies: | none |
Collection methods and comments
| Collection methods: | survey of museum collection | ||
| Reason for describing collection: | taxonomic analysis | ||
| Museum repositories: | BPI | ||
| Collectors: | J. Kitching | Collection dates: | 1945 |
Metadata
| Also known as: | Houd Constant, Katbos, Houdconstant | ||
| Database number: | 80174 | ||
| Authorizer: | J. Mueller, R. Butler | Enterer: | J. Dummasch, R. Butler, J. Benito Moreno |
| Modifier: | P. Wagner | Research group: | vertebrate |
| Created: | 2008-04-08 04:56:38 | Last modified: | 2024-11-16 13:22:26 |
| Access level: | the public | Released: | 2008-04-08 04:56:38 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 55757. | R. Broom and J. T. Robinson. 1948. Two new cotylosaurian reptiles. Annals of the Transvaal Museum 21:51-54 [R. Butler/R. Butler] |
Secondary references:
| 27203 | R. Broom. 1941. Some new Karroo reptiles with notes on a few others. Annal of the Transvaal Museum 20:194-213 [H. Sims/J. Camp/M. Uhen] | |
| 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] | |
| 57838 | C. F. Kammerer. 2016. Systematics of the Rubidgeinae (Therapsida: Gorgonopsia). PeerJ 4:e1608 [R. Butler/R. Butler] | |
| 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] |