The Moradi Formation is a geological formation in
Niger. It is of
Late Permian age. It is informally divided into three subunits. The lower portion of the formation consists of red
mudstone, with muddy calcareous
sandstone and quartz-granlule
conglomerate present as
lenses. The middle portion consists of muddy
siltstone in thick beds interbedded with red
argillaceous sandstone. The lower two thirds of the upper portion of the formation consist of red siltstone
intercalated with channel
lagintraformational conglomerates, while the upper third consists of
barchanoid shaped lenses of conglomeratic sandstone with
ventifacts.[1] These facies are indicatived of deposition under
arid conditions, with less than 300 millimetres (12 in) of annual rainfall in the Central
Pangean desert, with annual temperatures of 30 to 35 °C (86 to 95 °F), but with ephemeral water presence including lakes.[2]
^Smith, Roger M.H.; Sidor, Christian A.; Tabor, Neil J.; Steyer, J. Sébastien (December 2015). "Sedimentology and vertebrate taphonomy of the Moradi Formation of northern Niger: A Permian wet desert in the tropics of Pangaea". Palaeogeography, Palaeoclimatology, Palaeoecology. 440: 128–141.
Bibcode:
2015PPP...440..128S.
doi:
10.1016/j.palaeo.2015.08.032.
^Tabor, Neil J.; Smith, Roger M.H.; Steyer, J. Sébastien; Sidor, Christian A.; Poulsen, Christopher J. (January 2011). "The Permian Moradi Formation of northern Niger: Paleosol morphology, petrography and mineralogy". Palaeogeography, Palaeoclimatology, Palaeoecology. 299 (1–2): 200–213.
Bibcode:
2011PPP...299..200T.
doi:
10.1016/j.palaeo.2010.11.002.
^Sidor, Christian A. (November 2013). "The vertebrate fauna of the Upper Permian of Niger – VIII. Nigerpeton ricqlesi (Temnospondyli: Cochleosauridae) and tetrapod biogeographic provinces". Comptes Rendus Palevol. 12 (7–8): 463–472.
Bibcode:
2013CRPal..12..463S.
doi:
10.1016/j.crpv.2013.05.005.
ISSN1631-0683.
^Taquet, P. (1969). Première découverte en Afrique d'un Reptile Captorhinomorphe (Cotylosaurien). Comptes Rendus Hebdomadaires des Séances de l'Academie des Sciences Paris, Série D268:779-781
^
abSmiley, Tara M.; Sidor, Christian A.; Maga, Abdoulaye; Ide, Oumarou (2008-06-12). "The vertebrate fauna of the Upper Permian of Niger. VI. First evidence of a gorgonopsian therapsid". Journal of Vertebrate Paleontology. 28 (2): 543–547.
doi:
10.1671/0272-4634(2008)28[543:tvfotu]2.0.co;2.
ISSN0272-4634.
S2CID131082914.