Kurek Formation

Kurek Formation
Stratigraphic range: Late Oxfordian ~160–157  Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Type	Geological formation
Unit of	Kugitang Svita
Lithology
Primary	Limestone
Other	Mudstone
Location
Coordinates	38°30′N68°36′E / 38.5°N 68.6°E / 38.5; 68.6
Approximate paleocoordinates	43°12′N73°12′E / 43.2°N 73.2°E / 43.2; 73.2
Region	Lebap (Turkmenistan) Kashkadarya (Uzbekistan)
Country	Turkmenistan, Uzbekistan
Type section
Named for	Mount Kurek
Kurek Formation (Uzbekistan)

The Kurek Formation (Russian : Kurek Svita) is a late Oxfordian (Late Jurassic) geologic formation of the Kugitang Svita in Turkmenistan and Uzbekistan. Fossil sauropod tracks have been reported from the formation. ^[1]

Etymology

The formation is named after Mount Kurek (2,280 metres (7,480 ft)), near Langar, Uzbekistan. ^[2]

Description

The mudstones and limestones of the formation comprise a 2 centimetres (0.79 in) thick, massive micrite (mudstone) with sporadic and poorly preserved thin-walled bivalves. Also tracks were preserved at that were probably made in shallow water, showing, in some parts, ripple marks. ^[3]

Fossil content

Among the following fossils have been found in the Kurek Formation: ^[4]

Color key Taxon Reclassified taxon Taxon falsely reported as present Dubious taxon or junior synonym Ichnotaxon Ootaxon Morphotaxon		Notes Uncertain or tentative taxa are in small text; crossed out taxa are discredited.

Dinosaurs

Dinosaurs of the Kurek Formation
Genus	Species	Location	Stratigraphic position	Material	Notes	Images
Gissarosaurus	G. tetrafalangensis

Ichnofossils

Ichnofossils of the Kurek Formation
Genus	Species	Location	Stratigraphic position	Material	Notes	Images
Megalosauripus	M. uzbekistanicus
Mirsosauropus	M. tursunzadei
Regarosauropus	R. manovi
Shirkentosauropus	S. shirkentensis
Therangospodus	T. pandemicus

Molluscs

Bivalves

Bivalves of the Kurek Formation
Genus	Species	Location	Stratigraphic position	Material	Notes	Images
Bivalvia Indet.	Indeterminate

See also

• List of dinosaur-bearing rock formations
  • List of stratigraphic units with sauropodomorph tracks
    • Sauropod tracks
• Bissekty Formation
• Bostobe Formation
• Qiketai, Toutunhe, Shishugou and Qigu Formations, fossiliferous formations of the Junggar Basin, Xinjiang
• Haifanggou Formation, Hebei Basin, Hebei
• Oxfordian formations
  • Oxford Clay, England
  • Tendaguru Formation, fossiliferous formation of Tanzania
  • Cañadón Calcáreo Formation, fossiliferous formation of the Cañadón Asfalto Basin, Argentina

References

1. Weishampel et al., 2004, pp. 517-607
2. Katta Langar - Mount Kurek
3. Ak-Gaya tracksite at Fossilworks.org
4. Kurek Formation at Fossilworks.org

Bibliography

• Weishampel, David B.; Dodson, Peter; Osmólska, Halszka (2004), The Dinosauria, 2nd edition, Berkeley: University of California Press, pp. 1–880, ISBN   0-520-24209-2 , retrieved 2019-02-21

Further reading

• F. Fanti, M. Contessi, A. Nigarov and P. Esenov. 2013. New data on two large dinosaur tracksites from the Upper Jurassic of eastern Turkmenistan (Central Asia). Ichnos 20:54-71
• V. P. Novikov and M. R. Dzhalilov. 1988. Litologicheskaya interpretatsiya mestonakhozhdeniy sledov dinozavrov i Tadzhikistane [A lithological interpretation of localities with dinosaurian traces in Tajikistan]. In T. N. Bogdanova, L. I. Khosatzky, & A. A. Istchenko (eds.), Sledy Zhiznedeyatel'nosti i Dinamika Sredy v Drevnikh Biotopakh. Trudy XXX Sessii Vsesoyuznogo Paleontologicheskogo Obshchestva i VII Sessii Ukrainskogo Paleontologicheskogo Obshchestva [Fossil Traces of Vital Activity and Dynamics of the Environment in Ancient Biotopes. Transactions of the XXX Session of All-Union Paleontological Society and the VII Session of the Ukrainian Paleontological Society]. Naukova Dumka, Kiev 58–69
• K. N. Amanniyazov. 1985. Ob unikalnykh sledakh verkhneyurskikh dinozavrov v Turkmenistane [Unique tracks of dinosaurs in the Upper Jurassic of Turkmenistan]. In M. P. Dzhalilov, V. P. Novikov (eds.), Problemy Osvoeniya Pustyn [Problems of Desert Development], Institute of Geology, Academy of Sciences Turkmenistan 2:23-29