In Becetèn: Late/Upper Coniacian - Santonian, Niger
collected by Greigert, F. de Broin, D. E. Russell, P. Taquet 1966, 1970–1973

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Dipnomorpha - Lepidosirenidae
Protopterus sp. Agassiz 1843
Dipnoi - Ceratodontidae
Ceratodus sp. Agassiz 1838
Reptilia
Mesosuchia indet. Huxley 1875
    = Trematochampsa taqueti n. gen., n. sp. Buffetaut 1974
Buffetaut 1974
nomen dubium belonging to Notosuchia
MNHN Ibc 231
Libycosuchus sp. Stromer 1914
    = cf. Araripesuchus sp. Price 1959
Meunier and Larsson 2018
MNHN Ibc 119
Goniopholidae indet. (Cope 1875)
"provisionally assigned"
    = Tethysuchia indet. Buffetaut 1982
Meunier and Larsson 2018
maxilla fragment, teeth and quadrate
Reptilia - Titanosauridae
Titanosaurinae indet. Lydekker 1893
Reptilia - Avetheropoda
Carnosauria indet. Huene 1920
Reptilia - Lacertilia
Lacertilia indet. Owen 1842
20 specimens
Reptilia - Serpentes
Serpentes indet. Linnaeus 1758
same as undescribed genus from Paleocene of Niger
Reptilia - Madtsoiidae
Madtsoia sp. Simpson 1933
similar to M. madagascariensis but with some differences of possible specific value
    = Madtsoia aff. madagascariensis Hoffstetter 1961
Rage 1981
Reptilia - Testudines - Pelomedusidae
Pelomedusidae indet. Cope 1868
similar to Podocnemis
Reptilia - Testudines - Podocnemididae
Erymnochelys madagascariensis Grandidier 1867
Amphibia - Temnospondyli
Pipidae informal sp. 2 Gray 1825
1 individual
new form; MNHN.F.IBC 1602
    = Inbecetenanura ragei n. gen., n. sp. Lemierre et al. 2023
Lemierre et al. 2023
MNHN.F.IBC 1602
Amphibia - Temnospondyli - Pipidae
Pipidae indet. Gray 1825
"very close to Xenopus"; MNHN-IBC 1404
    = Pachybatrachus taqueti n. gen., n. sp. Báez and Rage 1998
Báez and Rage 1998
recombined as Pachycentrata taqueti
MNHN-IBC 1404
Amphibia - Temnospondyli - Ranidae
Ranidae indet. Rafinesque 1814
Amphibia - Temnospondyli - Urodela
Urodela indet. (Duméril 1805)
Actinopteri - Lepisosteiformes - Lepisosteidae
Lepisosteidae indet. Cuvier 1825
"close to the genus Paralepidosteus"
Actinopteri - Gigantodontidae
Stromerichthys sp. Weiler 1935
Actinopteri - Amiiformes - Amiidae
Amia sp. Linnaeus 1766
Angiospermae
Dicotyledoneae indet. ()
silicified trunks
see common names

Geography
Country:Niger State/province:Tahoua
Coordinates: 15.1° North, 6.0° East (view map)
Paleocoordinates:1.7° North, 0.9° East
Basis of coordinate:stated in text
Altitude:381 meters
Geographic resolution:outcrop
Time
Period:Cretaceous Epoch:Late/Upper Cretaceous
10 m.y. bin:Cretaceous 6
Key time interval:Late/Upper Coniacian - Santonian
Age range of interval:89.80000 - 83.60000 m.y. ago
Stratigraphy
Geological group:Damergou Formation:Inbeceten
Stratigraphic resolution:bed
Stratigraphy comments: layer enclosed by two well-dated beds (biostratigraphically), described as "lower Senonian"
"late Coniacian-Santonian (Báez and Rage 1998)
Lithology and environment
Primary lithology:black,gray "shale"
Secondary lithology: sandstone
Includes fossils?Y
Lithology description: "a formation composed of an alternation of clays and limestones"; vertebrates are in one of the clay beds "shales and sandstones" (Báez and Rage 1998)
Environment:fluvial-lacustrine indet.
Geology comments: "fluvial-lacustrine" (Báez and Rage 1998)
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils
Articulated whole bodies:none
Associated major elements:none
Disassociated major elements:many
Disassociated minor elements:many
Fragmentation:frequent
Collection methods and comments
Collection methods:bulk,surface (float),surface (in situ),sieve,field collection
Reason for describing collection:general faunal/floral analysis
Museum repositories:MNHN
Collectors:Greigert, F. de Broin, D. E. Russell, P. Taquet Collection dates:1966, 1970–1973
Collection method comments: "Most fossils lie exposed on the ground surface... A large number of the specimens collected came from screen-washing operations" (Báez and Rage 1998)
Metadata
Also known as:Inbécéten, Ibesseten, In Becetem, In Beceten, In'Betetéen
Database number:48867
Authorizer:M. Carrano, J. Alroy, P. Mannion Enterer:M. Carrano, P. Mannion, J. Alroy
Modifier:M. Carrano Research group:vertebrate
Created:2005-04-01 07:53:22 Last modified:2024-02-15 15:54:42
Access level:the public Released:2005-04-01 07:53:22
Creative Commons license:CC BY
Reference information

Primary reference:
13027.ETE F. de Broin, E. Buffetaut, J.-C. Koeniguer, J.-C. Rage, D. E. Russell, P. Taquet, C. Vergnaud-Grazzini and S. Wenz. 1974. La fauna de Vertébrés continentaux du gisement d'In Beceten (Sénonien du Niger) [The continental vertebrate fauna from the In Beceten locality (Senonian of Niger)]. Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences à Paris, série D 279:469-472 [M. Carrano/M. Carrano/M. Carrano]

Secondary references:

31023 A. M. Báez and J.-C. Rage. 1998. Pipid frogs from the Upper Cretaceous of In Beceten, Niger. Palaeontology 41(4):669-691 [J. Alroy/J. Alroy]
39539 E. Buffetaut. 1974. Trematochampsa taqueti, un Crocodilien nouveau du Sénonian inférieur du Niger. Comptes Rendus de l'Academie des Sciences (Paris), Série D 279:1749-1752 [P. Mannion/P. Mannion/P. Mannion]
87571 A. Lemierre, S. Bailon, A. Folie and M. Laurin. 2023. A new pipid from the Cretaceous of Africa (In Becetèn, Niger) and early evolution of the Pipidae. Journal of Systematic Palaeontology 21(1):2266428 [M. Carrano/M. Carrano]
63698 L. M. V. Meunier and H. C. E. Larsson. 2018. Trematochampsa taqueti as a nomen dubium and the crocodyliform diversity of the Upper Cretaceous In Beceten Formation of Niger. Zoological Journal of the Linnean Society 182(3):659-680 [P. Mannion/P. Mannion/P. Mannion]
13712ETE J. E. Powell. 2003. Revision of South American titanosaurid dinosaurs: palaeobiological, palaeobiogeographical and phylogenetic aspects. Records of the Queen Victoria Museum Launceston 111:1-173 [M. Carrano/M. Carrano/M. Carrano]
19060ETE J.-C. Rage. 1981. Les continents péri-atlantiques au Crétacé Supérieur: migrations des faunes continentales et problèmes paléogéographiques [The peri-Atlantic continents of the Upper Cretaceous: migrations of continental faunas and paleogeographic problems]. Cretaceous Research 2:65-84 [M. Carrano/M. Carrano]
25315ETE P. Taquet. 1976. Géologie et Paléontologie du Gisement de Gadoufaoua (Aptien du Niger) [Geology and Paleontology of the Gadoufaoua Locality (Aptian of Niger)]. Cahiers de Paléontologie, Centre National de la Recherche Scientifique, Paris 1-191 [M. Carrano/M. Carrano]
68574 P. Taquet. 1977. Les découvertes récentes de Dinosaures du Jurassique et du Crétacé en Afrique, au Proche et Moyen-Orient et en Inde [Recent discoveries of dinosaurs from the Jurassic and Cretaceous in Africa, the Near and Middle East, and India]. Mémoire Hors Serie—Société Géologique de France 8:325-330 [M. Carrano/M. Carrano]