Kota Formation
Kota Formation Stratigraphic range: Early-Mid Jurassic ~200–174 Ma | |
---|---|
Type | Geological formation |
Sub-units | Lower & Upper members |
Underlies | Unconformity with the |
Overlies | Dharmaram Formation |
Thickness | 550–600 m (1,800–1,970 ft) |
Lithology | |
Primary | Mudstone, sandstone |
Other | Limestone |
Location | |
Coordinates | 18°54′N 80°00′E / 18.9°N 80.0°ECoordinates: 18°54′N 80°00′E / 18.9°N 80.0°E |
Approximate paleocoordinates | 31°36′S 31°54′E / 31.6°S 31.9°E |
Region | Telangana |
Country | ![]() |
Extent | Pranhita-Godavari Basin |
Type section | |
Named for | Kota Village |
![]() ![]() Kota Formation (India) |
The Kota Formation is a geological formation in India. The precise age of Kota Formation are uncertain, but it dates from the Early to Middle Jurassic, and is split into a Lower Member and Upper Member.[1] The lower member is thought to be Hettangian-Pliensbachian.[2] While the upper unit is thought to be Toarcian, but may possibly extend into the Aalenian.[3] It conformably overlies the Dharmaram Formation which is Late Triassic to earliest Jurassic and is unconformably overlain by the Early Cretaceous . The lower member is approximately 100 m thick while the upper member is 490 m thick. Both subunits primarily consist of mudstone and sandstone, but near the base of the upper unit there is a 20-30 metre thick succession of limestone deposited in a freshwater setting.[4]
Fossil content[]
Vertebrates[]
Indeterminate thyreophoran remains geographically present in Telangana State, India. These were given the name Andhrasaurus by Roman Ulansky in 2014.[2]
Ornithodires | ||||||
---|---|---|---|---|---|---|
Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
Barapasaurus | B. tagorei | Telangana State | Lower Member | "Scattered remains of more than [six] partial skeletons without skulls, manus, or pes." | [2][5] | ![]() |
Campylognathoides | C. indicus | Chanda District, Deccan | [6] | ![]() | ||
Dandakosaurus | D. indicus | "Proximal pubis."[7] | [2] | |||
Kotasaurus | K. yamanpaliensis[2] | Telangana State[2] | Lower Member | "Nearly complete skeleton without skull."[8] | [2] |
Lepidosaurians | ||||||
---|---|---|---|---|---|---|
Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
Bharatagama | B. rebbanensis | Jaw fragments | Lizard | |||
P. indicus | Lizard | |||||
Rebbanasaurus | R. jaini | Rhynchocephalia | ||||
Godavarisaurus | G. lateefi | Rynchocephalia |
Testudinatans | ||||||
---|---|---|---|---|---|---|
Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
[9] | I. spatulata | 3 km NNE of Kistapur village, Pranhita River, Kota | Upper member | Carapace fragments[10] | Mesochelydian stem-turtle |
Mammaliaformes | ||||||
---|---|---|---|---|---|---|
Genus | Species | Location | Stratigraphic position | Material | Notes | Images |
P. yadagirii | ||||||
Dyskritodon | D. indicus | |||||
T. kotaensis | ||||||
N. paikasiensis | ||||||
Indobaatar | I. zofiae | |||||
Gondtherium[1] | B. dattai[1] | |||||
[11] | K. haldanei[11] | |||||
.[12] | I. pranhitai[12] |
Invertebrates[]
Insects[13][14] | ||||||
---|---|---|---|---|---|---|
Genus | Species | Location | Stratigraphic position | Material | Notes | |
A. shiva | Tasch outcrop K-2 bed 8 | Right forewing tegmen | A mesoblattinid cockroach | |||
|
K. frankmortoni |
Sirpur Taluka, Tasch's K1 outcrop bed 2(A) |
An hymenopteran. | |||
|
T. bharataja |
Sirpur Taluka, Tasch's K1 outcrop bed 3(A) |
A rhagionid dipteran. | |||
T. tulyabhijana |
Sirpur Taluka, Tasch's K1 outcrop bed 2(A) |
A rhagionid dipteran. | ||||
|
X. alexandri |
Kota Formation outcrop K-2 |
||||
P. (Protogryllus) lakshmi | Kota Formation outcrop K-2 | A protogryllid cricket |
See also[]
- List of dinosaur-bearing rock formations
- Toarcian turnover
- Toarcian formations
- Marne di Monte Serrone, Italy
- Calcare di Sogno, Italy
- Sachrang Formation, Austria
- Posidonia Shale, Lagerstätte in Germany
- Ciechocinek Formation, Germany and Poland
- Krempachy Marl Formation, Poland and Slovakia
- Lava Formation, Lithuania
- Azilal Group, North Africa
- Whitby Mudstone, England
- Fernie Formation, Alberta and British Columbia
- Poker Chip Shale
- Whiteaves Formation, British Columbia
- Navajo Sandstone, Utah
- Los Molles Formation, Argentina
- Mawson Formation, Antarctica
- Kandreho Formation, Madagascar
- Cattamarra Coal Measures, Australia
References[]
- ^ Jump up to: a b c Prasad GVR, and Manhas BK. 2007. A new docodont mammal from the Jurassic Kota Formation of India.[dead link] Palaeontologia electronica, 10.2: 1-11
- ^ Jump up to: a b c d e f g Weishampel, David B; et al. (2004). "Dinosaur distribution (Early Jurassic, Asia)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 534–535. ISBN 0-520-24209-2.
- ^ Bandyopadhyay, Saswati; Gillette, David D.; Ray, Sanghamitra; Sengupta, Dhurjati P. (2010-03-19). "Osteology of Barapasaurus tagorei (Dinosauria: Sauropoda) from the Early Jurassic of India: OSTEOLOGY OF BARAPASAURUS TAGOREI". Palaeontology. 53 (3): 533–569. doi:10.1111/j.1475-4983.2010.00933.x.
- ^ Goswami, Suparna; Gierlowski-Kordesch, Elizabeth; Ghosh, Parthasarathi (January 2018). "Sedimentology of the Early Jurassic limestone beds of the Kota Formation: record of carbonate wetlands in a continental rift basin of India". Journal of Paleolimnology. 59 (1): 21–38. doi:10.1007/s10933-016-9918-y. ISSN 0921-2728. S2CID 133167210.
- ^ "Table 13.1," in Weishampel, et al. (2004). Page 263.
- ^ Wellnhofer, Peter (1991). "Summary of Lower Jurassic Pterosaurs." The Illustrated Encyclopedia of Pterosaurs. London, UK: Salamander Books Limited. p. 79. ISBN 0-86101-566-5.
- ^ "Table 4.1," in Weishampel, et al. (2004). Page 78.
- ^ "Table 13.1," in Weishampel, et al. (2004). Page 261.
- ^ Datta, P.M.; Manna, P.; Ghosh, S.C.; Das, D. P. (April 2000). "The First Jurassic turtle from India". Palaeontology. 43 (1): 99–109. doi:10.1111/1475-4983.00120. ISSN 0031-0239.
- ^ Joyce, Walter G.; Bandyopadhyay, Saswati (2020-02-11). "A reevaluation of the basal turtle Indochelys spatulata from the Early–Middle Jurassic (Toarcian–Aalenian) of India, with descriptions of new material". PeerJ. 8: e8542. doi:10.7717/peerj.8542. ISSN 2167-8359. PMC 7020818. PMID 32095362.
- ^ Jump up to: a b Datta PM. 1981. The first Jurassic mammal from India. Zoological Journal of the Linnean Society of London, 73:307-312
- ^ Jump up to: a b Yadagiri P. 1984. New symmetrodonts from Kota Formation (Early Jurassic), India. Journal of the Geological Society of India, 25:514-621
- ^ Mostovski M.B., Jarzembowski E.A. 2000. The first brachycerous flies (Diptera: Rhagionidae) from the Lower Jurassic of Gondwana. Paleontological Journal 34 (Suppl. 3): 367-369.[1]
- ^ Rasnitsyn A.P. 2008. New hymenopteran insects (Insecta: Vespida) from the Lower or Middle Jurassic of India. Paleontological Journal 42 (1): 81-85.[2] Archived 2008-11-21 at the Wayback Machine
- Geologic formations of India
- Jurassic System of Asia
- Jurassic India
- Sinemurian Stage
- Pliensbachian Stage
- Toarcian Stage
- Hettangian Stage
- Mudstone formations
- Limestone formations
- Sandstone formations
- Lagoonal deposits
- Fossiliferous stratigraphic units of Asia
- Paleontology in India
- Geography of Telangana