The Assaouas Formation, also referred to as the Assaouas Sandstone () is a
Late Jurassic
The Late Jurassic is the third Epoch (geology), epoch of the Jurassic Period, and it spans the geologic time scale, geologic time from 161.5 ± 1.0 to 143.1 ± 0.8 million years ago (Ma), which is preserved in Upper Jurassic stratum, strata.Owen ...
geologic
formation
Formation may refer to:
Linguistics
* Back-formation, the process of creating a new lexeme by removing or affixes
* Word formation, the creation of a new word by adding affixes
Mathematics and science
* Cave formation or speleothem, a secondary ...
in
Niger
Niger, officially the Republic of the Niger, is a landlocked country in West Africa. It is a unitary state Geography of Niger#Political geography, bordered by Libya to the Libya–Niger border, north-east, Chad to the Chad–Niger border, east ...
. Fossil
sauropod
Sauropoda (), whose members are known as sauropods (; from '' sauro-'' + '' -pod'', 'lizard-footed'), is a clade of saurischian ('lizard-hipped') dinosaurs. Sauropods had very long necks, long tails, small heads (relative to the rest of their b ...
tracks have been reported from the formation.
[Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.]
See also
*
List of dinosaur-bearing rock formations
This list of dinosaur-bearing rock formations is a list of geologic formations in which dinosaur fossils have been documented.
* List of stratigraphic units with dinosaur body fossils
* List of stratigraphic units with dinosaur trace fossils
** ...
**
List of stratigraphic units with sauropodomorph tracks
Prosauropods
Sauropods
See also
List of dinosaur-bearing rock formations
This list of dinosaur-bearing rock formations is a list of geologic formations in which dinosaur fossils have been documented.
* List of stratigraphic units with ...
***
Sauropod tracks
*
Lists of fossiliferous stratigraphic units in Africa
These lists of fossiliferous stratigraphic units in Africa enumerate the Stratigraphy, rock layers which preserve the fossilized remains of ancient life in Africa by the modern countries wherein they are found.
Geographical atlas
...
**
List of fossiliferous stratigraphic units in Niger
This is a list of fossiliferous stratigraphic units in Niger.
__NOTOC__
List of fossiliferous stratigraphic units
See also
* Lists of fossiliferous stratigraphic units in Africa
** List of fossiliferous stratigraphic units in Mali
* Geol ...
*
Geology of Niger
The geology of Niger comprises very ancient igneous and metamorphic crystalline basement rocks in the west, more than 2.2 billion years old formed in the late Archean and Proterozoic eons of the Precambrian. The Volta Basin, Air Massif and the ...
References
Bibliography
* {{citation , last1=Weishampel , first1=David B. , author2-link=Peter Dodson , last2=Dodson , first2=Peter , author3-link=Halszka Osmólska , last3=Osmólska , first3=Halszka , year=2004 , title=The Dinosauria, 2nd edition , url=https://books.google.com/books?id=vtZFDb_iw40C , publisher=Berkeley: University of California Press , pages=1–880 , accessdate=2019-02-21 , isbn=0-520-24209-2 , author1-link=David B. Weishampel
Further reading
* L. Ginsburg, A. F. d.e. Lapparent, B. Loiret and P. Taquet. 1966. Empreintes de pas de Vertébrés tétrapodes dans le séries continentales à l’Ouest d’Agadès (République du Niger)
etrapod vertebrate footprints in the continental series west of Agadez (Republic of Niger) Comptes Rendus de l'Académie des Sciences, Série D 263:28-31
Geologic formations of Niger
Jurassic System of Africa
Middle Jurassic Africa
Mesozoic Niger
Sandstone formations
Ichnofossiliferous formations
Paleontology in Niger
Formations