Bostobe Formation
Bostobe Formation | |
---|---|
Stratigraphic range: Santonian-early Campanian ~ | |
Type | Geological formation |
Underlies | Akzhar Formation |
Overlies | Zhirkindek Formation |
Thickness | About 45 m (148 ft) |
Lithology | |
Primary | Sandstone |
Other | Claystone |
Location | |
Coordinates | 45°54′N 64°42′E / 45.9°N 64.7°E |
Approximate paleocoordinates | 38°42′N 58°00′E / 38.7°N 58.0°E |
Region | Qaraghandy & Qyzylorda |
Country | ![]() |
Type section | |
Named for | Bostobe River |
The Bostobe Formation (Kazakh: Boztóbe svıtasy) is a geological formation in Qaraghandy & Qyzylorda, Kazakhastan whose strata date back to the Late Cretaceous (Santonian to early Campanian stages, approximately 85 Ma).
The sandstones and claystones of the formation were deposited in estuarine, fluvial-lacustrine and fluvial-deltaic environments.
Dinosaur remains are among the fossils that have been recovered from the formation.[1] The formation is about 45 metres (148 ft) thick and consists primarily of clay with interbeds of sand, representing an estuarine environment.[2]
Fossil content
Khunnuchelys lophorhothon, a trionychid turtle recovered from the formation, was initially thought to belong to a hadrosaurid dinosaur and classified as cf. Lophorhothon sp.[3]
- Mammals
- Ankylosaurs
- Ankylosauridae indet.
- Ornithopods
- Sauropods
- Titanosauridae indet.
- Sauropoda indet.
- Theropods
- Caenagnathidae indet.
- Troodontidae indet.[6]
- Therizinosauria indet.[6]
- Ornithomimidae indet.[6]
- Tyrannosauroidea indet.
- Pterosaurs
- Turtles
- Adocus foveatus
- Anatolemys maximus
- Khunnuchelys lophorhothon[3]
- Lindholmemys gravis
- Shachemys baibolatica
- Trionyx kansaiensis, T. onomatoplokos, T. riabinini
- Other reptiles
- Amphibians
- Fish
- Flora
See also
- List of dinosaur-bearing rock formations
- List of fossiliferous stratigraphic units in Kazakhstan
- Bissekty Formation
- Madygen Formation
- Karabastau Formation
- Kugitang Svita
References
Bibliography
- Template:Cite LSA
- Template:Cite LSA doi:10.4202/app.2013.0045
- Template:Cite LSA
- Template:Cite LSA
- Template:Cite LSA
- Template:Cite LSA ISBN 0-520-24209-2
- Template:Cite LSA doi:10.1017/S0022336000018187 ISSN 0022-3360
Further reading
- A. O. Averianov. 2007. Theropod dinosaurs from Late Cretaceous deposits in the northeastern Aral Sea region, Kazakhstan. Cretaceous Research 28:532-544
- E. G. Kordikova, S. M. Kurzanov, and G. F. Gunnell. 1997. Unusual dinosaur claw phalanxes from the Upper Cretaceous of the northeastern Aral Sea region, Kazakhstan. Journal of Morphology 232(3):278
- L. A. Nessov. 1995. Dinozavri severnoi Yevrazii: Novye dannye o sostave kompleksov, ekologii i paleobiogeografii [Dinosaurs of northern Eurasia: new data about assemblages, ecology, and paleobiogeography]. Institute for Scientific Research on the Earth's Crust, St. Petersburg State University, St. Petersburg 1-156
- L. A. Nessov. 1988. Late Mesozoic amphibians and lizards of Soviet Middle Asia. Acta Zoologica Cracoviensia 31(14):475-486
- L. A. Nessov. 1984. Data on late Mesozoic turtles from the USSR. Studia Geologica Salamanticensia, vol. especial 1 (Studia Palaeocheloniologica I) 1:215-223
- L. A. Nessov. 1981. Amfibii i reptilii v ekosistemakh Mela sredney Azii [Amphibia and reptiles in Cretaceous ecosystems of central Asia]. In I. V. Darevsky (ed.), The Problems of Herpetology. Fifth Herpetological Conference. Abstracts 91-92
- A. K. Rozhdestvensky. 1964. Novye dannye o mestonakhozhdeniyakh dinozavrov na territorii Kazakhstana i Srednei Azii [New data on occurrences of dinosaurs in Kazakhstan and Central Asia]. Tashkentskii Gosudarstvennyi Universitet, Nauchnye Trudy: Geologiya [Tashkent State University, Scientific Publications: Geology] 234:227-241
- Geologic formations of Kazakhstan
- Upper Cretaceous Series of Asia
- Cretaceous Kazakhstan
- Campanian Stage
- Santonian Stage
- Sandstone formations
- Shale formations
- Deltaic deposits
- Fluvial deposits
- Lacustrine deposits
- Fossiliferous stratigraphic units of Asia
- Paleontology in Kazakhstan
- Geography of Karaganda Region
- Kyzylorda Region