Sandstone

Rock type: 
Age: 
184 millions years

Russia, Caucasus, Karachay-Cherkess Republic, Khasaut River Valley. Light gray quartz and polymictic sandstones, with mudstones, siltstones and interbeds of coal. Fossil: Velopecten rollei Tate, Lima punctata Sow., Circostylus euomphalus Quenst., Leda (Dacryomya) cf. graphica Tate, Astarte subtetragona Minst., Parallelodon aff. similis Terq., Hinnites sp. ind. (cf. davoei  Dam),  Nucula cf. palmae Sow. Lower Jurassic. Pliensbachian.

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