Zhirkindek Formation

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]

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	46.2°N 64.2°E / 46.2; 64.2
Approximate paleocoordinates	41.0°N 57.3°E / 41.0; 57.3
Region	Qyzylorda
Country	Kazakhstan
Zhirkindek Formation (Kazakhstan)

See also

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