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Tsagaantsav Formation

Coordinates: 44°54′N 110°24′E / 44.9°N 110.4°E / 44.9; 110.4
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Tsagaantsav Formation
Stratigraphic range: Hauterivian-Barremian
131–126 Ma
TypeGeological formation
UnderliesZuunbayan Formation, Shinekhudag Formation
OverliesBasement
Lithology
PrimarySandstone, siltstone
Location
Coordinates44°54′N 110°24′E / 44.9°N 110.4°E / 44.9; 110.4
Approximate paleocoordinates46°42′N 112°18′E / 46.7°N 112.3°E / 46.7; 112.3
RegionKhovd, Uvs, Dornogovi & Övörkhangai Provinces
Country Mongolia
Type section
Named forTsagan-Tsab well
Tsagaantsav Formation is located in Mongolia
Tsagaantsav Formation
Tsagaantsav Formation
Tsagaantsav Formation
Tsagaantsav Formation
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

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The following fossils were reported from the fluvial to lacustrine sandstones and siltstones of the formation:[1]

Insects

See also

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References

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  1. ^ a b Tsagaantsav Formation in the Paleobiology Database
  2. ^ Weishampel et al., 2004, pp.517-607
  3. ^ Barrett et al., 2008
  4. ^ Lü et al., 2009
  5. ^ Tsagan-Tsab well in the Paleobiology Database
  6. ^ Ponomarenko, 1992

Bibliography

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  • Lü, J.; Azuma, Y.; Dong, Z.; Barsbold, R.; Kobayashi, Y.; Lee, Y.-N. (2009). "New material of dsungaripterid pterosaurs (Pterosauria: Pterodactyloidea) from western Mongolia and its palaeoecological implications". Geological Magazine. 146 (5): 690–700. Bibcode:2009GeoM..146..690L. doi:10.1017/S0016756809006414.
  • Barrett, P.M.; Butler, R.J.; Edwards, N.P.; Milner, A.R. (2008). Hone, D.W.E.; Buffetaut, É. (eds.). "Pterosaur distribution in time and space: an atlas in Flugsaurier: Pterosaur papers in honour of Peter Wellnhofer" (PDF). Zitteliana B. 28: 61–107.
  • Weishampel, David B.; Dodson, Peter; Osmólska, Halszka, eds. (2004). The Dinosauria (2nd ed.). Berkeley: University of California Press. pp. 1–880. ISBN 0-520-24209-2. Retrieved 2019-02-21.
  • Ponomarenko, A.G. (1992). "Novye setchatokrylye (Insecta: Neuroptera) iz mezozoya Mongolii. Novye Taksony Iskopaemykh Bespozvonochnykh Mongolii". Sovmestnaya Rossiisko-Mongol'skaya Paleontologicheskaya Ekspeditsiya. 41: 101–111.