Robert’s Bonebed: Campanian - Maastrichtian, Sudan
collected 2011
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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Hyposaurus sp.
Owen 1849
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| MB R SUD 001a-d (fragments of a single skull) | ||||||||||
| Jouve et al. 2021 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Sudan | State/province: | River Nile |
| Coordinates: | 16.7° North, 33.4° East (view map) | ||
| Paleocoordinates: | 3.0° South, 34.4° East (Wright 2013) | ||
| Basis of coordinate: | based on nearby landmark | ||
| Geographic resolution: | small collection |
Time
| Period: | Cretaceous | Epoch: | Late Cretaceous |
| Stage: | Campanian - Maastrichtian | 10 m.y. bin: | Cretaceous 7 - Cretaceous 8 |
| Key time interval: | Campanian - Maastrichtian | ||
| Age range of interval: | 83.6 - 66 m.y. ago |
Stratigraphy
| Formation: | Shendi | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Agyemang et al. 2019 U-Pb detrital zircon analyses provided a likely depositional age of the Wadi Milk formation as Campanian–Maastrichtian and the Wadi Milk Formation was likely a correlative unit to the Shendi Formation. Recent palynological work by Eisawi et al. (2012) and Eisawi (2015) on the subsurface part of the Shendi Formation however, indicates a much younger Campanian–Maastrichtian age. | |||||
Lithology and environment
| Primary lithology: | sandstone |
| Includes fossils? | Y |
| Environment: | fluvial-lacustrine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | surface (in situ),field collection |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | MfN | Collection dates: | March 2011 |
Metadata
| Database number: | 175796 | ||
| Authorizer: | P. Mannion | Enterer: | P. Mannion |
| Modifier: | G. Varnham | Research group: | vertebrate |
| Created: | 2016-01-11 10:57:32 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2016-01-11 10:57:32 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 57575. | K. A. O. Salih, D. C. Evans, R. Bussert, N. Klein, M. Nafi and J. Müller. 2016. First record of Hyposaurus (Dyrosauridae, Crocodyliformes) from the Upper Cretaceous Shendi Formation of Sudan. Journal of Vertebrate Paleontology 36(1):e1115408:1-9 [P. Mannion/P. Mannion/M. Carrano] |
Secondary references:
| 79685 | P. C. O. Agyemang, E. M. Roberts, R. Bussert, D. Evans, and J. Müller. 2019. U-Pb detrital zircon constraints on the depositional age and provenance of the dinosaur-bearing Upper Cretaceous Wadi Milk formation of Sudan. Cretaceous Research 97:52-72 [P. Mannion/G. Varnham/G. Varnham] | |
| 74135 | S. Jouve, C. de Muizon, R. Cespedes-Paz, V. Sossa-Soruco, and S. Knoll. 2021. The longirostrine crocodyliforms from Bolivia and their evolution through the Cretaceous–Palaeogene boundary. Zoological Journal of the Linnean Society 192(2):475-509 [P. Mannion/P. Mannion/P. Mannion] |