The Rognacian Formation is a
geologic formation
A geological formation, or simply formation, is a body of rock having a consistent set of physical characteristics ( lithology) that distinguishes it from adjacent bodies of rock, and which occupies a particular position in the layers of rock exp ...
in
France
France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of overseas regions and territories in the Americas and the Atlantic, Pacific and Indian Oceans. Its metropolitan ar ...
. It is of
Maastrichtian
The Maastrichtian () is, in the ICS geologic timescale, the latest age (uppermost stage) of the Late Cretaceous Epoch or Upper Cretaceous Series, the Cretaceous Period or System, and of the Mesozoic Era or Erathem. It spanned the interv ...
age. The mammal ''
Valentinella
''Valentinella'' is a Late Cretaceous genus of eutherian mammal from France, Europe.Tabuce, R., Vianey-Liaud, M. and Garcia, G., 2004A eutherian mammal in the latest Cretaceous of Vitrolles, southern France ''Acta Palaeontologica Polonica'', 49(3) ...
'' is known from the formation, alongside indeterminate dinosaur remains.
Geological Setting
The Upper Cretaceous continental deposits in southern France are distributed from the east province to the west. The solid fragmented materials are characteristic of flood plain environments, with special deposits. There are alternating beds of fluvial channels and paleosols.
See also
*
References
*
* Garcia, G. & Vianey-Liaud, M. 2001, "Dinosaur eggshells as biochronological markers in Upper Cretaceous continental deposits", Palaeogeography, Palaeoclimatology, Palaeoecology, vol. 169, no. 1, pp. 153–164
Cretaceous France
Upper Cretaceous Series of Europe
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