In Touhout (bed 4): Maastrichtian, Niger

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Chondrichthyes
Batomorphii indet. Cappetta 1980
Chondrichthyes - Rajiformes - Sclerorhynchidae
Sclerorhynchidae indet. Capetta 1974
Schizorhiza stromeri Weiler 1930
Ischyrhiza nigeriensis Tabaste 1963
Chondrichthyes - Myliobatiformes - Myliobatidae
Igdabatis sigmodon Cappetta 1972
Chondrichthyes - Lamniformes - Lamnidae
Lamna nigeriana
Chondrichthyes - Orectolobiformes - Ginglymostomatidae
Ginglymostoma sp. Müller and Henle 1838
Chondrichthyes - Hybodontiformes - Acrodontidae
Asteracanthus aegyptiacus Stromer 1927
Actinopteri - Siluriformes
Siluriformes indet.
Actinopteri - Tetraodontiformes - Eotrigonodontidae
Stephanodus lybicus (Zittel 1888)
Actinopteri - Aulopiformes - Dercetidae
Stratodus apicalis Cope 1872
Actinopteri - Pycnodontiformes - Pycnodontidae
Pycnodus sp. Agassiz 1833
Dipnoi - Ceratodontidae
Ceratodus sp. Agassiz 1838
Reptilia - Testudines - Pelomedusidae
Pelomedusidae indet. Cope 1868
Reptilia - Testudines - Podocnemididae
Podocnemis sp. Wagler 1830
Bivalvia - Cardiida - Arcticidae
Veniella sp. Stoliczka 1870
Bivalvia - Cardiida - Veneridae
Pitarinae indet. Stewart 1930
Bivalvia - Pholadida - Corbulidae
Corbulidae indet. Lamarck 1818
Bivalvia - Ostreida - Ostreidae
"Ostrea" bouguignanti
? Acutostrea sp. Vyalov 1936
unclassified
? Baluchicardita sp.
Bivalvia - Ostreida - Gryphaeidae
"Ostrea" boucheroni Coquand 1859
Cephalopoda - Ammonitida - Sphenodiscidae
Libycoceras sp. Hyatt 1900
see common names

Geography
Country:Niger State/province:Tahoua
Coordinates: 15.4° North, 5.7° East (view map)
Paleocoordinates:5.2° North, 0.5° East
Basis of coordinate:based on nearby landmark
Geographic resolution:outcrop
Time
Period: Cretaceous Epoch: Late Cretaceous
Stage: Maastrichtian 10 m.y. bin: Cretaceous 8
Key time interval: Maastrichtian
Age range of interval: 72.1 - 66 m.y. ago
Stratigraphy
Formation:Dukamaje
Stratigraphic resolution:bed
Lithology and environment
Primary lithology:gray marl
Includes fossils?Y
Lithology description: gray marl and gray clay-shale
Environment:marginal marine indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils
Spatial resolution:parautochthonous
Collection methods and comments
Collection methods:field collection
Reason for describing collection:general faunal/floral analysis
Taxonomic list comments:Moody & Sutcliffe (1991) listed the presence of Trematochampsa taqueti and Libycosuchus sp. in this formation, but they provided no further details. Nicholl et al. (2021) suggested that this was a mistake, with the In Beceten Formation (Niger) faunal list accidentally incorporated; these occurrences have therefore been removed from this collection
be confirmed.
Metadata
Also known as:In Touhount
Database number:178660
Authorizer:M. Carrano Enterer:M. Carrano
Modifier:P. Mannion Research group:marine invertebrate,vertebrate
Created:2016-05-09 16:31:19 Last modified:2021-10-13 11:31:14
Access level:the public Released:2016-05-09 16:31:19
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:

78342 C. S. C. Nicholl, E. S. E. Hunt, D. Ouarhache and P. D. Mannion. 2021. A second peirosaurid crocodyliform from the Mid-Cretaceous Kem Kem Group of Morocco and the diversity of Gondwanan notosuchians outside South America. Royal Society Open Science 8:211254:1-31 [P. Mannion/P. Mannion]