Iouaridène Formation

The Iouaridène Formation is a Mesozoic geological formation in Morocco. Fossil sauropod,^[2] theropod,^[3] and stegosaur^[4] tracks have been reported from the formation. It is part of the 'Red Beds' of Morocco alongside the Guettioua Sandstone and Jbel Sidal Formation. The lithology consists of cyclic alternation of meter scale red mudstones and 10's of cm scale carbonate cemented mudstones to very fine sandstones. Some of the theropod footprints are massive,up to 90 centimetres (35 in) in length.^[5] However the largest of these theropod tracks are badly deformed.^[6]

TypeGeological formation

UnderliesGrès du Djebel Sidal Formation

OverliesGuettioua Formation, El Mers Formation

PrimaryMudstone

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Iouaridène Formation
Stratigraphic range: Middle Jurassic–Early Cretaceous, Callovian–Barremian[1] PreꞒ Ꞓ O S D C P T J K Pg N
Type	Geological formation
Underlies	Grès du Djebel Sidal Formation
Overlies	Guettioua Formation, El Mers Formation
Lithology
Primary	Mudstone
Other	Sandstone, conglomerate
Location
Coordinates	31.7°N 6.9°W / 31.7; -6.9
Approximate paleocoordinates	27.8°N 2.5°W / 27.8; -2.5
Region	Azilal Province, Marrakech Province
Country	Morocco
Extent	Atlas Mountains
Iouaridène Formation (Morocco)

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