Ulan Malgait Formation
| Ulan Malgait Formation | |
|---|---|
Ma | |
| Type | Govi-Altay |
| Country |  Mongolia |
| Type section | |
| Named for | Ulan Malgait Mountain |
  Ulan Malgait Formation (Mongolia) | |
The Ulan Malgait Formation is a
formation in Mongolia. Dinosaur remains are among the fossils that have been recovered from the formation, although as of 2004[update] none have yet been referred to a specific genus.[1]
It is best known for the Shar Teeg locality which has lent its name to Shartegosuchidae, a family of mesoeucrocodylians (relatives of crocodilians), many of which have been found there; Shartegosuchus (the family's type genus) means "Shar Teeg crocodile".[2] It is divided up into 2 subunits, the lower Shar Teg Beds and the upper Ulan Malgait Beds.[3]
The
lacustrine environment
.
Age
Dollman et al. (2018) argue that the age of the Ulan Malgait Formation is likely to be
Oxfordian based on the shared presence of Shartegosuchus and Nominosuchus with the radiometrically-dated Shishigou Formation of China.[10]
See also
- List of dinosaur-bearing rock formations
References
- ^ Weishampel et al., 2004, pp.517-607
- ^ Dollman et al., 2018
- ^ Watabe, 2010
- ^ Velazco et al., 2017
- ^ Efimov et al., 2000
- ^ I. D. Sukacheva. 2000. New fossil caddis flies (Trichoptera) from the Shar-Teg locality in Mongolia. Paleontological Journal 34(Suppl 3):S347-S351
- ^ "Shar-Teg, outcrop 443/1 (PIN collection 4270)". Paleobiology Database – via fossilworks.
- ^ "Shar-Teg, outcrop 423/6 (PIN collection 4270)". Paleobiology Database – via fossilworks.
- ^ "Shar-Teg, outcrop 441/4 (PIN collection 4270)". Paleobiology Database – via fossilworks.
- ^ Bor Ukhaa hills at Fossilworks.org
Bibliography
- Dollman, K. N.; J. M. Clark; M. A. Norell; X. Xu, and J. M. Choiniere. 2018. Convergent Evolution of a Eusuchian-Type Secondary Palate within Shartegosuchidae. American Museum Novitates 3901. 1–23. .
- Velazco, Paúl M.; Alexandra J. Buczek, and Michael J. Novacek. 2017. Two new tritylodontids (Synapsida, Cynodontia, Mammaliamorpha) from the Upper Jurassic, southwestern Mongolia. hdl:2246/6698
- Watabe, Mahito. 2010. Geology of dinosaur-fossil-bearing localities(Jurassic and Cretaceous: Mesozoic) in the Gobi Desert: Results of the HMNS-MPC Joint Paleontological Expedition. Hayashibara Museum of Natural Sciences Research Bulletin 3. 41–118. .
- Weishampel, David B.; Peter Dodson, and Halszka (eds.) Osmólska. 2004. The Dinosauria, 2nd edition, 1–880. Berkeley: University of California Press. Accessed 2019-02-21. ISBN 0-520-24209-2
- Efimov, M. B.; Y. M. Gubin, and S. M. Kurzanov. 2000. New primitive crocodile (Crocodylomorpha: Shartegosuchidae) from the Jurassic of Mongolia. Paleontological Journal 34. S238-S241. .
Further reading
- M. Rabi, V. B. Sukhanov, V. N. Egorova, I. Danilov, and W. G. Joyce. 2014. Osteology, relationships, and ecology of Annemys (Testudines, Eucryptodira) from the Late Jurassic of Shar Teg, Mongolia, and phylogenetic definitions for Xinjiangchelyidae, Sinemydidae, and Macrobaenidae. Journal of Vertebrate Paleontology 34(2):327-352
- M. Watabe, K. Tsogtbaatar, T. Tsuihiji and R. Barsbold. 2003. The first discovery of diverse Jurassic dinosaur faunas in Mongolia. Journal of Vertebrate Paleontology 23(3, suppl.):108A
- V. B. Sukhanov. 2000. Mesozoic turtles of Middle and Central Asia. In M. J. Benton, M. A. Shishkin, D. M. Unwin, & E N. Kurichkin (eds.), The Age of Dinosaurs in Russia and Mongolia 309-367
- Y. M. Gubin and S. M. Sinitza. 1996. Shar Teg: a unique Mesozoic locality of Asia. In M. Morales (ed.), The Continental Jurassic. Museum of Northern Arizona Bulletin 60:311-318