Mdongossi, Loc. B30: Anisian, Tanzania
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
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| 1 specimen | |||||||
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= Archosauriformes indet.
Gauthier 1986
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Butler 2010 | ||||||
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Anomodontia
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Anomodontia indet.
Owen 1859
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1 specimen | ||||||
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? Anomodontia indet.
Owen 1859
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1 specimen | ||||||
| see common names | |||||||
Geography
| Country: | Tanzania | State/province: | Iringa |
| Coordinates: | 10.5° South, 34.6° East (view map) | ||
| Paleocoordinates: | 40.2° South, 19.7° East (Wright 2013) | ||
| Basis of coordinate: | based on nearby landmark | ||
| Geographic resolution: | small collection |
Time
| Period: | Triassic | Epoch: | Middle Triassic |
| Stage: | Anisian | 10 m.y. bin: | Triassic 2 |
| Key time interval: | Anisian | Other zone: | Cynognathus subzone C |
| Age range of interval: | 246.7 - 241.464 m.y. ago |
Stratigraphy
| Formation: | Manda Beds | Member: | Lifua | ||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: "Upper Bone Bed (K.8)"; now Lifua Member of the Manda Beds. "Manda Beds are correlated with Subzone C of the Cynognathus Assemblage Zone of the Beaufort Group, South Africa, which has been dated as latest Anisian in age" | |||||
Lithology and environment
| Primary lithology: | red sandstone |
| Secondary lithology: | micaceous,green,red siltstone |
| Lithology description: "fining upward cycles of reddish feldspathic sandstones grading up to green or red micaceous siltstones" | |
| Environment: | fluvial-deltaic indet. |
| Geology comments: "seasonally arid fluviodeltaic environment" | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Fragmentation: | frequent |
Collection methods and comments
| Collection excludes: | all macrofossils |
| Collection methods: | selective quarrying,mechanical,field collection |
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: Various fragmentary bones also found | |
Metadata
| Database number: | 55757 | ||
| Authorizer: | M. Carrano, R. Butler | Enterer: | K. Maguire, R. Butler |
| Modifier: | R. Butler | Research group: | vertebrate |
| Created: | 2005-11-04 10:24:25 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2005-11-04 10:24:25 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 6969. | S. H. Haughton. 1932. On a collection of Karroo vertebrates from Tanganyika Territory. Quarterly Journal of the Geological Society of London 88(4):634-671 [M. Carrano/M. Carrano/M. Carrano] |
Secondary references:
| 32144 | R. J. Butler. 2010. Taxonomic opinions on Archosauromorpha. [R. Butler/R. Butler/R. Butler] |