Zhirkindek Formation

Zhirkindek Formation
Stratigraphic range: Turonian-Coniacian ~92–88  Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Type	Geological formation
Underlies	Bostobe Formation
Thickness	At least 42 m (138 ft)
Lithology
Primary	Sandstone
Other	Claystone, siltstone
Location
Coordinates	46°12′N64°12′E / 46.2°N 64.2°E / 46.2; 64.2
Approximate paleocoordinates	41°00′N57°18′E / 41.0°N 57.3°E / 41.0; 57.3
Region	Qyzylorda
Country	Kazakhstan
Zhirkindek Formation (Kazakhstan)

The Zhirkindek Formation is a Late Cretaceous geologic formation in Kazakhstan. ^[1] The primary lithology is sand with interbeds of clay and silt, and represents a coastal to coastal marine environment. ^[2] The formation has produced numerous fossils, including Lindholmemydid and Trionychid cryptodires, indeterminate remains of dinosaurs (Ankylosauridae indet., Hadrosauroidea indet., Neoceratopsia indet., Sauropoda indet., Tyrannosauroidea indet., Ornithomimidae indet., Therizinosauroidea indet and Dromaeosauridae indet) and an indeterminate species of pterosaur Azhdarcho . ^[3]

See also

• List of dinosaur-bearing rock formations
• List of fossiliferous stratigraphic units in Kazakhstan

References

1. Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database" . Retrieved 17 December 2021.
2. Kordikova, E. G.; Polly, P. D.; Alifanov, V. A.; Roček, Z.; Gunnell, G. F.; Averianov, A. O. (March 2001). "Small vertebrates from the late Cretaceous and early Tertiary of the northeastern Aral Sea region, Kazakhstan" . Journal of Paleontology. 75 (2): 390–400. doi:10.1017/S0022336000018187. ISSN   0022-3360.
3. Averianov, Alexander; Dyke, Gareth; Danilov, Igor; Skutschas, Pavel (2015-02-20). "The paleoenvironments of azhdarchid pterosaurs localities in the Late Cretaceous of Kazakhstan". ZooKeys (483): 59–80. Bibcode:2015ZooK..483...59A. doi: 10.3897/zookeys.483.9058 . ISSN   1313-2970. PMC   4351447 . PMID   25755624.