Javkhlant Formation

The Javkhlant Formation is a geological formation in Mongolia whose strata date back to the Late Cretaceous possibly Santonian to Campanian. Yamaceratops dorngobiensis and Haya griva been found in the formation.[1][2] Also fossilized nesting sites were found in the formation.[3]

Javkhlant Formation Stratigraphic range: Santonian-Campanian ~85 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Type	Geological formation
Overlies	Bayan Shireh Formation
Thickness	380 m (1,250 ft)
Lithology
Primary	Mudstone
Other	Sandstone, conglomerate
Location
Coordinates	44.4°N 109.4°E / 44.4; 109.4
Approximate paleocoordinates	44.6°N 98.8°E / 44.6; 98.8
Region	Dornogov
Country	Mongolia
Type section
Named by	Khand et al.
Year defined	2000
Javkhlant Formation (Mongolia)

See also

• List of dinosaur-bearing rock formations

References

1. Eberth et al., 2009
2. Makovicky et al., 2011
3. Tanaka et al., 2019

Bibliography

• Tanaka, K.; Y. Kobayashi; D.K. Zelenitsky; F. Therrien; Y.-N. Lee; R. Barsbold; K. Kubota; H.-J. Lee, and T. Chinzorig and D. Idersaikhan. 2019. Exceptional preservation of a Late Cretaceous dinosaur nesting site from Mongolia reveals colonial nesting behavior in a non-avian theropod. Geology 47. 843-847.
• Makovicky, Peter J.; Brandon M. Kilbourne; Rudyard W. Sadleir; Mark A. Norell (2011). "A new basal ornithopod (Dinosauria, Ornithischia) from the Late Cretaceous of Mongolia". Journal of Vertebrate Paleontology. 31 (3): 626–640. doi:10.1080/02724634.2011.557114.
• Eberth, D.A.; Y. Kobayashi; Y.N. Lee; O. Mateus; F. Therrien; D.K. Zelenitsky, and M.A. Norrell. 2009. Assignment of Yamaceratops dorngobiensis and associated redbeds at Shine Us Khudag (eastern Gobi, Dorngobi Province, Mongolia) to the redescribed Javkhlant Formation (Upper Cretaceous). Journal of Vertebrate Paleontology 29. 295–302. doi:10.1080/02724634.2009.10010384