In Beceten Formation

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

• Erymnochelys madagascariensis
• Madtsoia aff. madagascariensis
• Trematochampsa taqueti
• Libycosuchus sp.
• Carnosauria indet.
• Goniopholididae indet.
• Lacertilia indet.
• Pelomedusidae indet.
• Serpentes indet.
• Titanosaurinae indet.

Amphibians

• Pachycentrata taqueti
• Inbecetenanura ragei
• Ranidae indet.
• Urodela indet.

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

Bibliography

• Weishampel, David B.; Dodson, Peter; Osmólska, Halszka (2004), , Berkeley: University of California Press, pp. 1–880, ISBN 0-520-24209-2{{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