Mont Igdaman (bed 25): Maastrichtian, Niger

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia - Mosasauridae
Halisaurus sp. Marsh 1869
Lingham-Soliar 1991 4 specimens
BMNH R11983, R11906, R11951, R11952
Igdamanosaurus aegyptiacus (Zdansky 1935)
Lingham-Soliar 1991 1 specimen
BNMH R11898
cf. Mosasaurus hoffmani
Lingham-Soliar 1991 1 specimen
BMNH R11913
Plioplatecarpus sp. Dollo 1882
Lingham-Soliar 1991 3 specimens
BMNH R11924, R11982, R11950
? Platecarpus sp. Cope 1869
Lingham-Soliar 1991 1 specimen
BMNH R11899
? Angolasaurus sp. Antunes 1964
Lingham-Soliar 1991 4 specimens
BMNH R11901, R11902, R11903, R11904
Mosasauridae indet. Gervais 1852
2 specimens
BNMH R11909, R11947
    = Goronyosaurus sp. Azzaroli et al. 1972
Lingham-Soliar 1991
Reptilia - Palaeophiidae
Palaeophis sp. Owen 1841
Lingham-Soliar 1991
Actinopteri - Aulopiformes - Dercetidae
Stratodus sp. Cope 1872
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]