Nemegt Formation

Nemegt Formation
Stratigraphic range: Maastrichtian ~72.1–66 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Nemegt, the type locality of the Nemegt Formation
Type	Geological formation
Sub-units	Lower, Middle and Upper units
Underlies	Alluvium
Overlies	Barun Goyot Formation
Thickness	Over 235 m (771 ft)
Lithology
Primary	Shale, sandstone
Other	Mudstone, conglomerate
Location
Coordinates	43°30′N 101°00′E / 43.5°N 101.0°E / 43.5; 101.0
Approximate paleocoordinates	40°48′N 90°12′E / 40.8°N 90.2°E / 40.8; 90.2
Region	Bayankhongor Aimag, Omnogov, Ovorkhangai
Country	Mongolia
Extent	Gobi Desert
Cretaceous-aged dinosaur fossil localities of Mongolia. Nemegt localities at area A.

The Nemegt Formation (also known as Nemegtskaya Svita) is a geological formation in the Gobi Desert of Mongolia, dating to the Late Cretaceous. The formation consists of river channel sediments and contains fossils of fish, turtles, crocodilians, and a diverse fauna of dinosaurs, including birds.