The In Beceten Formation, also Beceten or Ibecten is a Coniacian to Santonian geologic formation in the Iullemmeden Basin of Niger. It has yielded a diverse fauna and some angiosperms. Among others, it has yielded polypterifoms, urodeles, anurans, and turtles. Dinosaur remains are among the other fossils that have been recovered from the formation, although none have yet been referred to a specific genus. The lithology primarily consists of clays, fine limestones and sandy clays.
Fossil content The following fossils have been reported from the formation:
Fish
Amia sp. Stromerichthys sp. Lepisosteidae indet. Reptiles
Amphibians
Dipnoi Ceratodus sp. Protopterus sp. Flora Dicotyledonae
See also List of dinosaur-bearing rock formations List of stratigraphic units with indeterminate dinosaur fossils Lists of fossiliferous stratigraphic units in Africa List of fossiliferous stratigraphic units in Niger Geology of Niger
References
Bibliography Weishampel, David B.; Dodson, Peter; Osmólska, Halszka (2004), The Dinosauria, 2nd edition, Berkeley: University of California Press, pp. 1–880, ISBN 0-520-24209-2, retrieved 2019-02-21{{citation}}: CS1 maint: publisher location (link)
Further reading 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 Séances de l'Académie des Sciences de Paris, série D 279:469-472
