Mont Igdaman (bed 25): Maastrichtian, Niger
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia
- Mosasauridae
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Halisaurus sp.
Marsh 1869
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Lingham-Soliar 1991 | 4 specimens | ||||||||
BMNH R11983, R11906, R11951, R11952 | ||||||||||
Igdamanosaurus aegyptiacus
(Zdansky 1935)
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Lingham-Soliar 1991 | 1 specimen | ||||||||
BNMH R11898 | ||||||||||
cf. Mosasaurus hoffmani
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Lingham-Soliar 1991 | 1 specimen | ||||||||
BMNH R11913 | ||||||||||
Plioplatecarpus sp.
Dollo 1882
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Lingham-Soliar 1991 | 3 specimens | ||||||||
BMNH R11924, R11982, R11950 | ||||||||||
? Platecarpus sp.
Cope 1869
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Lingham-Soliar 1991 | 1 specimen | ||||||||
BMNH R11899 | ||||||||||
? Angolasaurus sp.
Antunes 1964
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Lingham-Soliar 1991 | 4 specimens | ||||||||
BMNH R11901, R11902, R11903, R11904 | ||||||||||
Mosasauridae indet.
Gervais 1852
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2 specimens | |||||||||
BNMH R11909, R11947 | ||||||||||
= Goronyosaurus sp.
Azzaroli et al. 1972
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Lingham-Soliar 1991 | |||||||||
Reptilia
- Palaeophiidae
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Palaeophis sp.
Owen 1841
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Lingham-Soliar 1991 | |||||||||
Actinopteri
- Aulopiformes
- Dercetidae
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Stratodus sp.
Cope 1872
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Lingham-Soliar 1991 | |||||||||
see common names |
Geography
Country: | Niger | State/province: | Tahoua |
Coordinates: | 15.4° North, 5.8° East (view map) | ||
Paleocoordinates: | 5.1° North, 0.6° East | ||
Basis of coordinate: | stated in text | ||
Geographic resolution: | local area |
Time
Period: | Cretaceous | Epoch: | Late/Upper Cretaceous |
Stage: | Maastrichtian | 10 m.y. bin: | Cretaceous 8 |
Key time interval: | Maastrichtian | ||
Age range of interval: | 72.10000 - 66.00000 m.y. ago |
Stratigraphy
Formation: | Dukamaje |
Stratigraphic resolution: | bed |
Lithology and environment
Primary lithology: | phosphatic,green siltstone |
Includes fossils? | Y |
Lithology description: "Grey silts with phosphorite bands packed with coprolites, fish and reptile bones." | |
Environment: | marine indet. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Preservation of anatomical detail: | good |
Abundance in sediment: | common |
Fragmentation: | occasional |
Spatial resolution: | parautochthonous |
Collection methods and comments
Collection excludes: | some macrofossils |
Reason for describing collection: | general faunal/floral analysis |
Metadata
Database number: | 104945 | ||
Authorizer: | M. Carrano | Enterer: | H. Street, M. Carrano |
Modifier: | M. Carrano | Research group: | vertebrate |
Created: | 2011-02-12 09:24:13 | Last modified: | 2016-05-09 16:38:47 |
Access level: | the public | Released: | 2011-02-12 09:24:13 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
59073. | R. T. J. Moody and P. J. C. Suttcliffe. 1991. The Cretaceous deposits of the Iullemmeden Basin of Niger, central West Africa. Cretaceous Research 12:137-157 [M. Carrano/M. Carrano] |
Secondary references:
35127 | T. Lingham-Soliar. 1991. Mosasaurs from the Upper Cretacous of Niger. Palaeontology 34(3):653-670 [M. Carrano/H. Street/P. Mannion] |