Shemshak Group

Shemshak Group
Shemshak Group
Stratigraphic range:
	A Shemshak Group excavation site and some of its fossils
Type	Geological group
Sub-units	Shemshak Formation; Dansirit Formation; Hojedk Formation; Nayband Formation; Klariz Formation; Badamu Formation;
Overlies	Elikah Formation; locally Permian or older rocks;
Thickness	Up to 4000 m
Lithology
Primary	Mainly; Shale,; sandstone; Mudrock;
Other	siltstone; Coal; argillite;
Location
Region	Alborz Province, Isfahan Province, Kerman Province, Golestan Province, South Khorasan Province
Country	Iran
	; The approximate extent of the Shemshak Group outcrops is marked in red (some locations are larger than reality).

The Shemshak Formation is a Mesozoic geologic group in Iran. It is dated to the Norian to the Late Jurassic and is up to 4,000 meters thick and primarily consists of siliciclastic sediments. The most important group in terms of paleontology is the Mesozoic in Iran. Contains dinosaur fossils, plant flora with rich coal deposits, and other animals.