Dushihin Formation
Dushihin Formation Stratigraphic range: Aptian | |
---|---|
Type | Geological formation |
Lithology | |
Primary | Claystone, conglomerate |
Location | |
Coordinates | 45°24′N 101°42′E / 45.4°N 101.7°ECoordinates: 45°24′N 101°42′E / 45.4°N 101.7°E |
Approximate paleocoordinates | 46°30′N 101°42′E / 46.5°N 101.7°E |
Region | Övörkhangai Province |
Country | ![]() |
![]() ![]() Dushihin Formation (Mongolia) |
The Dushihin Formation is an Early Cretaceous (Aptian) geologic formation in the Övörkhangai Province of Mongolia.[1] The formation preserves fossils of Psittacosaurus mongoliensis and fossil eggs described as Trachoolithus faticanus.
Description[]
The formation comprises concretionary, calcareous claystones and concretionary, brown, gray, green, blue, calcareous claystones with large flattened lime concretions. Within 3 metres (9.8 ft) in the formation is a lens of lighter grayish-brown clay with green and blue spots and small lime concretions. In the lens is also an inclusion of blue, pale purple-spotted aleurite. The depositional environment has been interpreted as lacustrine.[2]
Fossil content[]
The following fossils were reported from the lacustrine claystones and conglomerates of the formation:[1]
See also[]
- List of dinosaur-bearing rock formations
- List of stratigraphic units with dinosaur eggs
- Andaikhudag Formation
- Khuren Dukh Formation
- Tsagaantsav Formation
References[]
- ^ a b Dushihin Formation in the Paleobiology Database
- ^ Builjasutuin-Khuduk in the Paleobiology Database
- ^ Shuvalov, 1975
- ^ a b c Kurzanov & Mikhailov, 1989
- ^ Mikhailov, 2000
- ^ a b Mikhailov et al., 1994
Bibliography[]
- . 2000. Eggs and eggshells of dinosaurs and birds from the Cretaceous of Mongolia. In M. J. Benton, M. A. Shishkin, D. M. Unwin, & E N. Kurichkin (eds.), 560–572. The Age of Dinosaurs in Russia and Mongolia.
- Cambridge University Press, Cambridge. ; , and . 1994. Eggs and nests from the Cretaceous of Mongolia. In K. Carpenter, K. F. Hirsch, and J. R. Horner (eds.), Dinosaur Eggs and Babies, 88–115.
- , and . 1989. Dinosaur eggshells from the Lower Cretaceous of Mongolia, 109–113. D. D. Gillette and M. G. Lockley (eds.), Dinosaur Tracks and Traces. Cambridge University Press, Cambridge.
- . 1975. Novoe Mestonakhozhdenie rannemelovykh dinozavrov Buylyasutuin-Khuduk - A new locality of Early Cretaceous dinosaurs, Buylyasutuin-Khuduk - in N. Kramarenko, B. Luwsandansan, Yu. Voronin, R. Barsbold, A. Rozhdestvensky (eds.), Iskopaemaya Fauna I Flora Mongolii [Fossil Flora and Fauna of Mongolia]. Sovmestnaya Sovetsko-Mongol'skaya Paleontologicheskaya Ekspeditsiya, Trudy - The Joint Soviet-Mongolian Paleontological Expedition, Transactions 2. 210–213.
- Geologic formations of Mongolia
- Lower Cretaceous Series of Asia
- Cretaceous Mongolia
- Aptian Stage
- Conglomerate formations
- Shale formations
- Lacustrine deposits
- Ooliferous formations
- Paleontology in Mongolia
- Övörkhangai Province