Tsagaantsav Formation
Tsagaantsav Formation Stratigraphic range: Hauterivian-Barremian | |
---|---|
Type | Geological formation |
Underlies | , Shinekhudag Formation |
Overlies | Basement |
Lithology | |
Primary | Sandstone, siltstone |
Location | |
Coordinates | 44°54′N 110°24′E / 44.9°N 110.4°ECoordinates: 44°54′N 110°24′E / 44.9°N 110.4°E |
Approximate paleocoordinates | 46°42′N 112°18′E / 46.7°N 112.3°E |
Region | Khovd, Uvs, Dornogovi & Övörkhangai Provinces |
Country | ![]() |
Type section | |
Named for | Tsagan-Tsab well |
![]() ![]() ![]() ![]() ![]() Tsagaantsav Formation (Mongolia) |
The Tsagaantsav Formation, Tsagantsab Formation or Tsagan-Tsab Formation (Russian: Tsagaantsav Svita) is an Early Cretaceous (Hauterivian to Barremian) geologic formation in Mongolia.[1] Indeterminate sauropod and psittacosaurid remains have been recovered from the formation.[2] Remains of the pterosaur Noripterus, which were originally given their own genus, "Phobetor" have also been recovered from the formation.[3][4]
Graham et al. 2001 reported radiometric dates of 131 and 126 Ma from the formation.[5]
Fossil content[]
The following fossils were reported from the fluvial to lacustrine sandstones and siltstones of the formation:[1]
- Insects
See also[]
- List of dinosaur-bearing rock formations
- List of pterosaur-bearing stratigraphic units
- Andaikhudag Formation
References[]
- ^ a b Tsagaantsav Formation in the Paleobiology Database
- ^ Weishampel et al., 2004, pp.517-607
- ^ Barrett et al., 2008
- ^ Lü et al., 2009
- ^ Tsagan-Tsab well in the Paleobiology Database
- ^ Ponomarenko, 1992
Bibliography[]
- Geological Magazine 146. 690–700. ; ; ; ; , and . 2009. New material of dsungaripterid pterosaurs (Pterosauria: Pterodactyloidea) from western Mongolia and its palaeoecological implications.
- Pterosaur distribution in time and space: an atlas in Flugsaurier: Pterosaur papers in honour of Peter Wellnhofer. Zitteliana B 28. 61–107. ; ; , and . 2008.
- The Dinosauria, 2nd edition, 1–880. Berkeley: University of California Press. Accessed 2019-02-21. ISBN 0-520-24209-2 ; , and . 2004.
- . 1992. Novye setchatokrylye (Insecta: Neuroptera) iz mezozoya Mongolii. Novye Taksony Iskopaemykh Bespozvonochnykh Mongolii. Sovmestnaya Rossiisko-Mongol'skaya Paleontologicheskaya Ekspeditsiya 41. 101–111.
Categories:
- Geologic formations of Mongolia
- Lower Cretaceous Series of Asia
- Cretaceous Mongolia
- Barremian Stage
- Hauterivian Stage
- Sandstone formations
- Siltstone formations
- Fluvial deposits
- Lacustrine deposits
- Paleontology in Mongolia
- Dornogovi Province
- Khovd Province
- Övörkhangai Province
- Uvs Province