Kota Formation

Last updated
Kota Formation
Stratigraphic range: Jurassic
~190.8–161.5  Ma
Type Geological formation
Sub-unitsLower & Upper members
UnderliesUnconformity with the Gangapur Formation and Chikiala Formation
Overlies Dharmaram Formation
Thickness550–600 m (1,800–1,970 ft)
Lithology
Primary Mudstone, sandstone
Other Limestone
Location
Coordinates 18°54′N80°00′E / 18.9°N 80.0°E / 18.9; 80.0
Approximate paleocoordinates 31°36′S31°54′E / 31.6°S 31.9°E / -31.6; 31.9
Region Telangana
CountryFlag of India.svg  India
Extent Pranhita-Godavari Basin
Type section
Named forKota Village
India relief location map.jpg
Blue pog.svg
Kota Formation (India)

The Kota Formation is a geological formation in India. The age of the Kota Formation is uncertain; it is commonly considered to date to the Early Jurassic, but some studies have suggested it may extend into the Middle Jurassic or even later. It conformably overlies the Lower Jurassic Upper Dharmaram Formation and is unconformably overlain by the Lower Cretaceous Gangapur Formation. It is split into a Lower Member and Upper Member. 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. [1]

Contents

Stratigraphy

The lower boundary of the Kota Formation is made of pebbly sandstone, covering the topmost clay seen in the Dharmaram Formation. [2] The Kota Formation has been traditionally divided into 2 main members, the Lower and Upper members, yet more recent work have redivided it into 3. [3] The Lower member can be seen at locations such as Adamilli, Kamavarapukota and Sudikonda, being made of sandstones, with clay clasts, with greater or lower stratification. [4] The Middle Member is well developed along the Continental Gondwana basin, specially towards the northwestern part, and is made of medium to fine white sandstone with clay and concretionary limestone, suggesting the development of paleosols associated with alluvial floodplains. [3] The last member is mostly made of broad sandstone sheets with large clay casts associated with fluvial channels, and has an extension that can be easuly seen on several continuous kilometers. [4] [5] The Uppermost section of the unit is mostly made of limestones and is overlain on an angular unconformity by the Gangapur Formation. [3]

Age

The age of the Kota Formation is controversial. There are no magmatic rocks or volcanic ash beds associated with the Kota Formation, which means that its age cannot be determined directly through radiometric dating. [6] [7] The maximum age of the Kota Formation is constrained by the underlying Upper Dharmaram Formation, which is Early Jurassic, probably Hettangian or Sinemurian, in age. [8] [7] Various researchers have attempted to date the Kota Formation using biostratigraphy. Krishnan (1968), Jain (1973), and Yadagiri and Prasad (1977) favored an Early Jurassic age based on the fish fauna. Govindan (1975) suggested a Middle Jurassic age based on ostracods. In 2006, Bandyopadhyay and Sengupta argued that the fish fauna suggested a Toarcian age for the Upper Kota Formation, possibly extending into the Aalenian, and in turn estimated the Lower Kota to be Sinemurian to Pliensbachian in age. [9] Guntupalli V. R. Prasad, along with various coauthors, has argued for a younger age. In 2001, Vijaya and Prasad proposed based on palynological evidence that the Kota Formation was deposited between the Callovian age of the Middle Jurassic and the Barremian age of the Early Cretaceous. [10] In 2002, Prasad and Manhas argued that the mammal genus Dyskritodon , known only from the Kota Formation and the Early Cretaceous of Morocco, provides evidence for a young age for the Kota Formation. [11] In 2020, Prasad and Parmar argued that the similarity of the dinosaur fauna of the Kota Formation to that of the Middle Jurassic of the United Kingdom supported a Middle Jurassic age for the Kota Formation. [12]

Paleoenvironment

Tablas de Daimiel Reflejos de Atardecer.jpg
Rainbow Mountain Scenic Reserve 15.jpg
The Kota Formation hosted lacustrine and wetland settings, this last one being of carbonate type, having modern analoges such as the Tablas de Daimiel in Spain or Waiotapu in New Zealand

The Kota Formation represents mostly a Continental succession related to a continental rift basin, the Pranhita-Godavari Gondwana Basin of peninsular India. [13] The associated facies of sandstone and limestones are likely related to playa-type lake, with nearby fluvial currents, part of low gradient hanging wall alluvial fans, being deposited on it´s margin. There have been records of freshwater lue green algal stromatolites and oncolites, suggested to be deposited on low energy and low bathymetry lacustrine settings. [14] More recent works have proven the basin hosted in the Early Jurassic a freshwater carbonate wetland marked by the presence of limestones. [1] The environmental model proposed include a depositional cycle marked by several facies types, A for the sublittoral zones of shallow water bodies, followed by palustrine environments, including surfaces with abundance of influence of both plants and animals, specially rhizobrecciation indicating active colonization of the margins by plants, having a similar deposition to the modern Las Tablas de Daimiel wetlands. [1] Associated with the lacustrine facies have recovered microbial bioherms and lacustrine spring mounds, shallow ephemeral ponds with carbonated mud and Phyllopods, pedogenic calcrete under arid seasons and short-lived distributary channels. [13] The depositional setting may have been partially sheltered from the input of siliciclastic materials, except on flooding seasons. Microbial biomats likely developed on shallow waters, while rhizoliths increased it´s presence of abandoned channel fills and pedogenic facies indicate drought seasons. [13]

The carbonate layers with iron-rich grains and mudstones suggest a transition zone between a lake margin and wetland in a rift valley, in a marsh that experienced periodic influxes of iron-rich and barium-rich waters through faults. [15] These waters briefly increased acidity but were neutralized by mixing with alkaline surface water, allowing carbonate formation. Iron-oxidizing microbes likely helped deposit iron oxides, cementing the sediment. During high water flow, these deposits were eroded and transported to deeper waters, forming iron-rich coatings. Thin sandy layers suggest that freshwater influxes occurred, forming carbonate bodies near water discharge points. As the water returned to being more alkaline, carbonates could form again, supporting freshwater Bivalvia, similar to modern geothermal areas of New Zealand. [15]

Fossil content

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

Ostracoda

Ostracods
GenusSpeciesLocationStratigraphic positionMaterialNotesImages

Clinocypris [16]

C. sp.

  • Daroghapalli
  • Upper Member

Six carapaces

A freshwater ostracodan of the Family Pontocyprididae.

Cypredea [16]

C. sp.

  • Daroghapalli
  • Upper Member

Fourteen incomplete carapaces

A freshwater ostracodan of the Family Palaeocytheridae.

Darwinula [17] [16]

D. cf.sarytirmenensis

  • Aklapalli
  • Daroghapalli
  • Kanchelli
  • Metpalli
  • Potepalli
  • Lower Member
  • Upper Member

More than 200 carapaces and valves

A freshwater ostracodan of the Family Darwinulidae. The most dominant genus locally and the main indicator of both fluvial and lacustrine settings

D. kingi

  • Aklapalli
  • Daroghapalli
  • Kanchelli
  • Metpalli
  • Potepalli
  • Lower Member
  • Upper Member

Around 120 carapaces and valves

A freshwater ostracodan of the Family Darwinulidae.

D. spp.

  • Daroghapalli
  • Lower Member
  • Upper Member

Nineteen Carapaces

A freshwater ostracodan of the Family Darwinulidae.

Eucandona [16]

E. sp.

  • Daroghapalli
  • Upper Member

Eight incomplete carapaces

A freshwater ostracodan of the Family Candoninae.

Limnocythere [17]

L. spp.

  • Daroghapalli
  • Lower Member

Three complete carapaces

A freshwater ostracodan of the family Limnocytheridae.

Stenocypris [16]

?S. sp.

  • Daroghapalli
  • Upper Member

Single incomplete carapace

A freshwater ostracodan of the family Cyprididae.

Timiriasevia [17]

T. digitalis

  • Daroghapalli
  • Lower Member

Twenty complete carapaces and thirty-six partly broken carapaces.

A freshwater ostracodan of the family Limnocytheridae.

Phyllopoda

Phyllopods
GenusSpeciesLocationStratigraphic positionMaterialNotesImages

Estheriina [18] [19]

E. alibadadensis

  • Boraigudem limestone ridge
  • Kota limestone ridge
  • Lingal-Metpalli ridge
  • Lower Member
  • Upper Member

Valves

A freshwater clam shrimp of the family Estheriininae. The most abundant Estheriid in the region and the key element of the Estheriina biozone

E. indijurassica

  • Boraigudem limestone ridge
  • Kota limestone ridge
  • Lingal-Metpalli ridge
  • Lower Member
  • Upper Member

Valves

A freshwater clam shrimp of the family Estheriininae.

E. bullata

  • Boraigudem limestone ridge
  • Kota limestone ridge
  • Lingal-Metpalli ridge
  • Lower Member
  • Upper Member

Valves

A freshwater clam shrimp of the family Estheriininae.

E. pranhitaensis

  • Boraigudem limestone ridge
  • Kota limestone ridge
  • Lingal-Metpalli ridge
  • Lower Member
  • Upper Member

Valves

A freshwater clam shrimp of the family Estheriininae.

Lioestheria [18] [19]

L. kotaensis

  • Boraigudem limestone ridge
  • Kota limestone ridge
  • Lingal-Metpalli ridge
  • Lower Member
  • Upper Member

Valves

A freshwater clam shrimp of the family Lioestheriidae. The second key element of the Estheriina biozone

FMIB 47695 Estheria obliqua, one of the Conchostraca.jpeg

L. crustabundis [18]

  • Boraigudem limestone ridge
  • Kota limestone ridge
  • Lingal-Metpalli ridge
  • Lower Member
  • Upper Member

Valves

A freshwater clam shrimp of the family Lioestheriidae.

L. ssp. [18]

  • Kota limestone ridge
  • Lower Member

Valves

A freshwater clam shrimp of the family Lioestheriidae.

Paleolimnadia [18]

P. spp.

  • Kota limestone ridge
  • Lower Member
  • Upper Member

Valves

A freshwater clam shrimp of the family Estheriininae.

Pseudeasmussiata [18]

P. andhrapradeshia

  • Boraigudem limestone ridge
  • Kota limestone ridge
  • Lingal-Metpalli ridge
  • Lower Member
  • Upper Member

Valves

A freshwater clam shrimp of the family Lioestheriidae.

Insecta

Insects
GenusSpeciesLocationStratigraphic positionMaterialNotesImages

Archimesoblatta [20]

A. shiva

Tasch outcrop K-2 bed 8

  • Upper Member

Right forewing tegmen

A mesoblattinid cockroach

Coleopteron [21]

C. sp.

Kota limestone ridge

  • Lower Member

Isolated wings

An Indeterminate Coleopteran.

Kotaphialtites [22]

K. frankmortoni

Sirpur Taluka, Tasch's K1 outcrop bed 2(A)

  • Upper Member

MCZ 11909, Isolated wing

An ephialtitid hymenopteran.

Protogryllus [23]

P. lakshmi

Kota Formation outcrop K-2

  • Upper Member

MCZ 3046, Isolated wing

A protogryllid cricket

Taschigatra [24]

T. bharataja

Sirpur Taluka, Tasch's K1 outcrop bed 3(A)

  • Upper Member

No.2013(3013), part and counterpart of well preserved wing

A rhagionid dipteran.

T. tulyabhijana

Sirpur Taluka, Tasch's K1 outcrop bed 2(A)

  • Upper Member

No. 5034, well preserved wing

A rhagionid dipteran.

Xyelula [22]

X. alexandri

Kota Formation outcrop K-2

  • Upper Member

MCZ 11831, well preserved wing

A sepulcid hymenopteran.

Fish

Fish
TaxonSpeciesLocationStratigraphic positionMaterialNotesImages

Indocoelacanthus [25]

I. robustus

  • Boraigudem limestone ridge
  • Kota limestone ridge
  • Lingal-Metpalli ridge
  • Lower Member
  • Upper Member
  • ISI P. 39. Impression of the caudal fin
  • ISI P. 40. Nearly complete head and trunk squamation
  • ISI P. 41-45. Fragments of fin-rays
  • ISI P. 46. Neural arches, isolated scales and girdle elements

A robust freshwater coelacanth of the family Latimeriidae. Represents the largest member of the local freshwater fauna, measuring up to 70 cm. [25]

Lepidotes [26] [27] [28]

L. deccanensis

  • Kota limestone ridge
  • Paikasigudem village
  • Lower Member
  • Upper Member
  • Complete Specimen
  • Isolated Remains

A freshwater neopterygian of the family Lepisosteiformes.

Lepidotes 1904.png

L. spp.

  • Kota limestone ridge
  • Paikasigudem village
  • Lower Member
  • Upper Member

Isolated remains

A freshwater neopterygian of the family Lepisosteiformes.

Lonchidion [29] [26]

L. indicus

  • Paikasigudem village
  • Yamanpalli bonebed
  • Upper Member
  • GSI.TI.2, tooth
  • Isolated Teeth

A freshwater elasmobranch of the family Lonchidiidae.

Paradapedium [26] [30]

P. egertoni

  • Boraigudem limestone ridge
  • Kota limestone ridge
  • Near Ankisha
  • Lower Member
  • Upper Member
  • BMNHP12146, Partial specimen
  • BMNHP12147, Almost complete specimen
  • BMNHP12148, Partial specimen
  • ISIP.32 Nearly complete specimen
  • ISIP.33 Nearly complete specimen
  • ISIP.34 Nearly complete specimen
  • ISIP.35 specimen lacking tail and head

A freshwater neopterygian of the family Dapediidae.

Pholidophorus [31]

P. kingi

  • Boraigudem limestone ridge
  • Kota limestone ridge
  • Paikasigudem village
  • Lower Member
  • Upper Member
  • Several complete and incomplete specimens

A freshwater neopterygian of the family Pholidophoridae.

P. indicus

  • Boraigudem limestone ridge
  • Kota limestone ridge
  • Paikasigudem village
  • Lower Member
  • Upper Member
  • Several complete and incomplete specimens

A freshwater neopterygian of the family Pholidophoridae.

Polyacrodus [26] [32]

P.? sp.

  • Paikasigudem village
  • Upper Member
  • Tooth

A freshwater elasmobranch of the family Polyacrodontidae.

Pycnodontidae [29]

Indeterminate

  • Paikasigudem village
  • Upper Member
  • About 60 specimens of Pharyngeal Teeth, including GSITL3-6

A freshwater neopterygian of the family Pycnodontidae, originally classified as Perciformes, yet suggested to be very similar to the Cretaceous pycnodont Stephanodus .

Semionotiformes [26]

Indeterminate

  • Paikasigudem village
  • Upper Member
  • Teeth

A freshwater neopterygian of the family Semionotiformes.

Tetragonolepis [26] [30]

T. oldhami

  • Kota limestone ridge
  • Lingal-Metpalli ridge
  • Lower Member
  • Upper Member
  • GSI2145, an impression including most of the body
  • ISP36, fragment of trunk and skull
  • ISP37, nearly complete specimen

A freshwater neopterygian of the family Dapediidae.

Tetragonolepis.jpg

Amphibia

Amphibians
TaxonSpeciesLocationStratigraphic positionMaterialNotesImages

Anura [29]

Indeterminate

  • Paikasigudem village
  • Upper Member
  • GSI.TL.19, Mandible
  • GSI.TL.20, right illium

Indeterminate frog remains, originally referred to Pelobatidae due to be compared with younger Creteaceous Indian frog material

Caudata [29]

Indeterminate

  • Paikasigudem village
  • Upper Member
  • GSI.TI.10, mandible with one teeth
  • GSI.TI.16, fragment of mandible
  • GSI.TI.17, madible with 4 teeth

Indeterminate caudatan remains, originally referred to Sirenidae due to be compared with younger Creteaceous sirenid material

Mammaliaforms

Mammaliaforms
TaxonSpeciesLocationStratigraphic positionMaterialNotesImages

Australosphenida [33]

Indeterminate

Paikasigudem village

  • Upper Member

Isolated lower molar

A mammal of the group Australosphenida, resembling the south american genus Asfaltomylos

Dyskritodon? [11]

D.? indicus

Paikasigudem village

  • Upper Member

VPL/JU/KM/13, lower left molar

A dubious mammal of the group Eutriconodonta. This Genus is known from the Early Cretaceous of Morocco, what has been used to suggest a minimum Berrasian age for the Upper Kota Formation

Gondtherium [32]

G. dattai

Paikasigudem village

  • Upper Member

VPL/JU/KM 12 right lower molar

A mammal of the family Docodontidae

Indotherium [34]

I. pranhitai

5 km west of Yamanapalli

  • Lower Member

GSI20795, right upper molar

A mammaliform of the family Morganucodontidae. Includes the informally named "Indozostrodon simpsoni". [35]

Indobaatar [36]

I. zofiae

Paikasigudem village

  • Upper Member

VPL/JU/KM/20, a left upper premolar

A mammal described as an eobaatarid multituberculate, but this interpretation has been challenged. [37]

Kotatherium [38]

K. haldanei

5 km west of Yamanapalli

  • Lower Member

GSI19634, right upper molar

A mammaliform of the family Kuehneotheriidae

Nakunodon [39]

N. paikasiensis

Paikasigudem village

  • Upper Member

GSI.SR/PAL/12, right upper molar

A mammal of the family Amphidontidae

Paikasigudodon [11] [40]

P. yadagirii

Paikasigudem village

  • Upper Member

VPL/JU/KM/10, right upper molar

A mammaliaform of the family Morganucodontidae, originally known as "Kotatherium yadagirii"

Trishulotherium [34]

T. kotaensis

Paikasigudem village

  • Upper Member

GSISR/PAL/10, left lower molar

A mammal of the order Symmetrodonta

Lepidosauromorpha

Lepidosauromorphs
TaxonSpeciesLocationStratigraphic positionMaterialNotesImages

Bharatagama [41]

B. rebbanensis

Paikasigudem village

  • Upper Member
  • VPL/JU/KR 66, dentary
  • VPL/JU/KR 88, anterior region of a left maxilla
  • VPL/JU/KR 91, left maxilla
  • VPL/JU/KR 90-92, posterior ends of right maxillae
  • VPL/JU/KR 67-80-103, anterior symphysial region
  • JU/KR 79, 98, 100, dentaries mid-region
  • VPL/JU/KR 69, 81-84, 87, dentary with hatchling dentition
  • VPL/JU/KR 68, 85-86, dentary
  • VPL/JU/KR 70, 71, 76,78, 93, 94, 97, 104, 105, dentary

A lepidosauromorph originally described as an Iguanian lizard. May actually be a sphenodontian rather than a lizard. [42]

Godavarisaurus [43]

G. lateefi

  • Gorlapalli village
  • Paikasigudem village
  • Upper Member
  • VP4Ju/KR47, a partial right dentary
  • VP4Ju/KR44, 51, 52, right maxilla
  • VP4Ju/KR40, 41, 43, 49, 50, left maxilla
  • VP4Ju/KR37, 48, 65, right dentary
  • VP4Ju/KR39, fragment of left dentary
  • VP4Ju/KR46, left palatine

A small sphenodontian, with a skull estimated to measure less than 20 mm

Paikasisaurus [29] [41]

P. indicus

Paikasigudem village

  • Upper Member
  • GSI.TI.14, left dentary with teeth
  • GSI.TI.15, left dentary with one tooth

An indeterminate and dubious lepidosauromorph, originally suggested to be a varanoid lizard

Rebbanasaurus [43]

R. jaini

Paikasigudem village

  • Upper Member
  • About 50 specimens, including premaxillae, maxillae, dentaries, and a palatine

A small sphenodont

Squamata? [29] [41]

Indeterminate

Paikasigudem village

  • Upper Member
  • VPL/JU/KR 62, fragmentary right maxilla
  • VPL/JU/KR 61, partial maxilla

Distinct from Bharatagama rebbanensis; may include material formerly assigned to the dubious Kota squamate Paikasisaurus indicus. [lower-alpha 1]

Sphenodontidae [29] [43]

Indeterminate

Paikasigudem village

  • Upper Member
  • GSI.TI.8-12, 17, maxilla

Indeterminate Sphenodontidae remains

Testudinata

Turtles
TaxonSpeciesLocationStratigraphic positionMaterialNotesImages

Indochelys [44] [45]

I. spatulata

  • 3 km NNE of Kistapur village, Kota
  • Near Kota village, north of Sironcha
  • Upper Member
  • GSI 20380, a partial shell
  • ISI R176, a partial shell
  • ISI R177, the anterior half of a shell

Mesochelydian stem-turtle, suggested to be related with Condorchelys

Testudines [46]

Indeterminate

1 km south of Bodepalli

  • Lower Member

Carapace fragments

Indeterminate turtle remains

Crocodylomorpha

Atoposaurid crocodiles are known from the unit, yet is not clear from what locality. [7]

Crocodylomorpha
TaxonSpeciesLocationStratigraphic positionMaterialNotesImages

Crocodylomorpha [47]

Indeterminate

1 km south of Bodepalli

Lower Member

Maxillae, dentaries, teeth

Indeterminate crocodylomorph remains, previously mixed with thyreophoran material and part of the chimaeric "Andhrasaurus"

Teleosauridae? [48]

Indeterminate

Kota limestone ridge

  • Lower Member

Dermal scutes, with a femur and some fragments of other bones

Indeterminate material referred to crocodylomorphs similar to Teleosaurus

Pterosauria

Pterosaurs
TaxonSpeciesLocationStratigraphic positionMaterialNotesImages

Campylognathoides [49]

C. indicus

Kota limestone ridge

  • Lower Member
  • ISI R38, holotype, fragment of skull and upper jaw

The holotype of Campylognathoides indicus, a pair of premaxillae, may represent a fish rather than a pterosaur. [50]

Pterosauria [49] [51]

Indeterminate

  • Boraigudem
  • Chitur
  • Lower Member
  • GSI17868, radius and ulna, wing metacarpal, first wing-phalanx and a clawed toe
  • ISIR49. fragment displaying dissociated bones from post-cranial region

Indeterminate pterosaur remains

Dinosaurs

Dinosaurs
GenusSpeciesLocationStratigraphic positionMaterialNotesImages

"Andhrasaurus" [46] [52]

"A. indicus"

1 km south of Bodepalli

Lower Member

Sacral vertebra, vertebral centra, dorsal vertebrae, caudal vertebrae, parts of scapula and ilium, osteoderms

A chimaera of thyreophoran postcranial material and Crocodylomorph skull pieces. The armor was later suggested to be Ankylosauria indet. [47] And other latter works pointed out it likely belongs to an indeterminate basal thyreophoran. [53]

Barapasaurus [54]

B. tagorei

  • North of Krishnapur
  • Pochampalli village
  • Lower Member
  • Roughly 300 bones, representing the disarticulated remains of at least six individuals

A sauropod dinosaur, either a Eusauropoda or more likely a Gravisauria. Represents the best-known Early Jurassic sauropod

Barapasaurus DB.jpg

Dandakosaurus [55]

D. indicus

Yamanpalli bonebed

Lower Member

  • Lateral tooth, proximal ischium
  • Dorsal vertebra, proximal caudal vertebra (Likely of Kotasaurus)

A chimaera of large theropod bones, including and ischium and tooth, probably belonging to a carnosaur, and sauropod bones (two Kotasaurus vertebrae)

Dandakosaurus.png

Dromaeosauridae? [12]

Indeterminate

Paikasigudem village

  • Upper Member

Isolated Teeth

Five distinct morphotypes have been identified, mostly resemble coelurosaurs or dromaeosauroids. [12]

Hypsilophodontidae [56]

Indeterminate

Gorlapalli Village

  • Upper Member
  • Single Tooth

Identified originally as a member of Hypsilophodontidae, probably represents a tooth of a basal neornithischian. [12]

Kotasaurus [57]

K. yamanpalliensis

Yamanpalli bonebed

  • Lower Member

Disarticulated remains of at least 12 individuals [57]

A basal sauropod

160-million-year-old mounted dinosaur skeleton.jpg

Ornithischia [47] [12]

Indeterminate

  • 1 km south of Bodepalli
  • Paikasigudem village
  • Lower Member
  • Upper Member
  • End of left humerus
  • Isolated Teeth

Indeterminate ornithischian material. Among the teeth, at least five distinct morphotypes have been identified.

Richardoestesia ? [12]

R.? spp.

Paikasigudem village

  • Upper Member

Isolated Teeth

Teeth similar to those of the problematic taxon Richardoestesia, of supposed coelurosaur affinities

Thyreophora [12] [58]

Indeterminate

Paikasigudem village

  • Upper Member

Scute and associated fragmentary limb bones.

Indeterminate scelidosaurid material.

Sauropoda [57] Indeterminate.Yamanpalli bonebed.• Lower MemberTeeth.Found in the same bonebed as Kotasaurus, resembles Amygdalodon .
Carnosauria [57] Indeterminate.Yamanapalli bonebed.• Lower MemberTeeth.Found in the same bonebed as Kotasaurus, referred to as

'carnosaurs'

Megaflora

GenusSpeciesLocationStratigraphic positionMaterialNotesImages

Agathoxylon [59]

A. kotaense

Near Kota village

  • Lower Member

Fossil wood

Affinities with Araucariaceae or Cheirolepidiaceae inside Pinales.

A. chandrapurensis [60]

Near Kota village

  • Lower Member

Fossil wood

Affinities with Araucariaceae or Cheirolepidiaceae inside Pinales.

A. santacruzense [61]

Near Kota village

  • Lower Member

Fossil wood

Affinities with Araucariaceae or Cheirolepidiaceae inside Pinales.

A. pranhitaensis [59] [62]

Near Kota village

  • Lower Member

Fossil wood

Affinities with Araucariaceae or Cheirolepidiaceae inside Pinales.

A. santalense [59]

Near Kota village

  • Lower Member

Fossil wood

Affinities with Araucariaceae or Cheirolepidiaceae inside Pinales.

A. spp. [59]

  • Bodepalli
  • Near Kota village
  • Paikasigudem village
  • Lower Member
  • Upper Member

Fossil wood

Affinities with Araucariaceae or Cheirolepidiaceae inside Pinales.

Araucarites [62] [51]

A. minutus

  • Dronadula
  • Lower Member

Branched shoots

Affinities with Araucariaceae inside Pinales.

A. sp.

  • Near Kota village
  • Lower Member

Branched shoots

Affinities with Araucariaceae inside Pinales.

Brachyphyllum [62] [60]

B. expansum

  • Near Kota village
  • Lower Member

Branched shoots

Affinities with Araucariaceae or Cheirolepidiaceae inside Pinales.

Elatocladus [62] [51]

E. conferta

Near Kota village

  • Lower Member

Branched shoots

Affinities with Cupressaceae inside Pinales.

E. tenerrimus [60]

Near Kota village

  • Lower Member

Branched shoots

Affinities with Cupressaceae inside Pinales.

E. jabalpurensis [60]

Near Kota village

  • Lower Member

Branched shoots

Affinities with Cupressaceae inside Pinales.

E. plana [60]

Near Kota village

  • Lower Member

Branched shoots

Affinities with Cupressaceae inside Pinales.

E. sp. [60]

Near Kota village

  • Lower Member

Branched shoots

Affinities with Cupressaceae inside Pinales.

Cladophlebis [51]

C. denticulata

  • Boraigudem
  • Chitur
  • Near Kota village
  • Lower Member

Isolated fronds

Affinities with Osmundaceae in the Osmundales.

Cladophlebis denticulata illustration EB1911 Palaeobotany - Cladophlebis denticulata.jpg
Cladophlebis denticulata illustration

C. indica [62] [51]

  • Boraigudem
  • Chitur
  • Near Kota village
  • Lower Member

Isolated fronds

Affinities with Osmundaceae in the Osmundales

C. reversa [62] [51]

  • Boraigudem
  • Chitur
  • Near Kota village
  • Lower Member

Isolated fronds

Affinities with Osmundaceae in the Osmundales

C. spp. [62] [51]

  • Boraigudem
  • Chitur
  • Near Kota village
  • Lower Member

Isolated fronds

Affinities with Osmundaceae in the Osmundales

Circoporoxylon [63]

C. kotaense

Near Kota village

  • Lower Member

Fossil wood

Affinities with Podocarpaceae inside Pinales.

Coniopteris [62] [51]

C. hymenophylloides

  • Boraigudem
  • Chitur
  • Near Kota village
  • Lower Member

Isolated fronds

Affinities with Polypodiales in the Polypodiidae. Common cosmopolitan Mesozoic fern genus. Recent research has reinterpreted it a stem group of the Polypodiales (closely related to the extant genera Dennstaedtia , Lindsaea , and Odontosoria )

Coniopteris specimen Dictyophyllum and Coniopteris (cropped).jpg
Coniopteris specimen

C. sp. [62]

  • Near Kota village
  • Lower Member

Isolated fronds

Affinities with Polypodiales in the Polypodiidae.

Cupressinoxylon [59] [62]

C. kotaense

Near Kota village

  • Lower Member

Fossil wood

Affinities with Cupressaceae inside Pinales.

Dictyozamites [60]

D. falcatus

  • Near Kota village
  • Lower Member

Leaflets

Affinities with Williamsoniaceae in the Bennettitales.

D. kotaense [60]

  • Near Kota village
  • Lower Member

Leaflets

Affinities with Williamsoniaceae in the Bennettitales.

Equisetum [62]

E.rajmahalensis

  • Chitur village
  • Near Kota village
  • Lower Member
  • Upper Member

Isolated Stems

Affinities with Equisetaceae inside Equisetales.

Extant Equisetum arvense specimen Equisetum arvense 116526373.jpg
Extant Equisetum arvense specimen

Ginkgoites [62]

G. lobata

  • Near Kota village
  • Lower Member

Leafs

Affinities with Ginkgoaceae inside Ginkgoopsida.

Ginkgoites reconstruction Ginkgo sibirica - Zhevlakova Ekaterina.jpg
Ginkgoites reconstruction

Ginkgoxylon [64]

G. dixii

Near Kota village

  • Lower Member

Fossil wood

Affinities with Ginkgoaceae inside Ginkgoopsida.

Hausmannia [62]

H. cf. buchii

Near Kota village

  • Lower Member

Isolated pinnae

Affinities with Dipteridaceae in the Polypodiales.

Hausmannia specimen Hausmannia dentata.jpg
Hausmannia specimen

Otozamites [60]

O. vemavarmensis

  • Near Kota village
  • Lower Member

Leaflets

Affinities with Williamsoniaceae in the Bennettitales.

Otozamites specimen Otozamites brevifolium.JPG
Otozamites specimen

Pagiophyllum [62] [51]

P. peregrinum

Near Kota village

  • Lower Member

Branched shoots

Affinities with Araucariaceae or Cheirolepidiaceae inside Pinales.

P. cf.peregrinum

Near Kota village

  • Lower Member

Branched shoots

Affinities with Araucariaceae or Cheirolepidiaceae inside Pinales.

P. spp.

Near Kota village

  • Lower Member

Branched shoots

Affinities with Araucariaceae or Cheirolepidiaceae inside Pinales.

Pachypteris [60]

P. indica

Near Kota village

  • Lower Member

Isolated pinnae

Affinities with Umkomasiaceae in the Pteridospermatophyta.

Planoxylon [60]

P. mahabalei

Near Kota village

  • Lower Member

Fossil wood

Affinities with Protopinaceae inside Pinales.

Podocarpoxylon [62]

P. chandrapurensis

Near Kota village

  • Lower Member

Fossil wood

Affinities with Podocarpaceae inside Pinales.

P. chiturensis [60]

Chitur village

  • Upper Member

Fossil wood

Affinities with Podocarpaceae inside Pinales.

P. krauselii [62]

Near Kota village

  • Lower Member

Fossil wood

Affinities with Podocarpaceae inside Pinales.

P. rajmahalense [62]

Near Kota village

  • Lower Member

Fossil wood

Affinities with Podocarpaceae inside Pinales.

P. sewardii [60]

Near Kota village

  • Lower Member

Fossil wood

Affinities with Podocarpaceae inside Pinales.

P. sp. [62]

Near Kota village

  • Lower Member

Fossil wood

Affinities with Podocarpaceae inside Pinales.

Podozamites [62]

P. sp.

  • Near Kota village
  • Lower Member

Leaflets

Broad conifer leaves

Pseudoctenis [60]

P. cf. fragilis

  • Near Kota village
  • Lower Member

Leaflets

Affinities with Cycadales in the Cycadopsida.

Ptilophyllum [62]

P. fissum

  • Boraigudem
  • Chitur
  • Near Kota village
  • Lower Member

Leaflets

Affinities with Williamsoniaceae in the Bennettitales.

P. acutifolium

  • Boraigudem
  • Chitur
  • Near Kota village
  • Lower Member

Leaflets

Affinities with Williamsoniaceae in the Bennettitales.

P. cutchense [60]

  • Chitur village
  • Near Kota village
  • Lower Member
  • Upper Member

Leaflets

Affinities with Williamsoniaceae in the Bennettitales.

P. cf.sahnii [60]

  • Near Kota village
  • Lower Member

Leaflets

Affinities with Williamsoniaceae in the Bennettitales.

P. cf.institacallum [60]

  • Near Kota village
  • Lower Member

Leaflets

Affinities with Williamsoniaceae in the Bennettitales.

P. sp.

  • Near Kota village
  • Lower Member

Leaflets

Affinities with Williamsoniaceae in the Bennettitales.

Protaxodioxylon [65]

P. sahnii

Chitur village

  • Upper Member

Fossil wood

Affinities with Cupressaceae inside Pinales.

P. liassicum [66]

Near Kota village

  • Lower Member

Fossil wood

Affinities with Cupressaceae inside Pinales.

Sphenopteris [62] [60]

S. kotaensis

Near Kota village

  • Lower Member

Isolated Fronds

Affinities with Dicksoniaceae in the Cyatheales.

Taxaceoxylon [62]

T. sahnii

Near Kota village

  • Lower Member

Fossil wood

Affinities with Cupressaceae inside Pinales.

T. biradarii [60]

Chitur village

  • Lower Member

Fossil wood

Affinities with Cupressaceae inside Pinales.

T. antiquum [60]

Near Kota village

  • Lower Member

Fossil wood

Affinities with Cupressaceae inside Pinales.

T. sp.

Near Kota village

  • Upper Member

Fossil wood

Affinities with Cupressaceae inside Pinales.

Torreyites [60]

T. constricte

  • Chitur village
  • Upper Member

Branched shoots

Affinities with Taxaceae in the Pinales.

Extant Torreya specimen Torreya nucifera var. spaerica.jpg
Extant Torreya specimen

See also

Notes

  1. It cannot be determined which of the two Kota squamate forms, if either, the holotype of Paikasisaurus indicus pertains to. [41]

Related Research Articles

<i>Barapasaurus</i> Sauropod dinosaur genus from Early Jurassic India

Barapasaurus is a genus of basal sauropod dinosaur from Jurassic rocks of India. The only species is B. tagorei. Barapasaurus comes from the lower part of the Kota Formation, which is of Early to Middle Jurassic age. It is therefore one of the earliest known sauropods. Barapasaurus is known from approximately 300 bones from at least six individuals, so that the skeleton is almost completely known except for the anterior cervical vertebrae and the skull. This makes Barapasaurus one of the most completely known sauropods from the early Jurassic.

<i>Dravidosaurus</i> Extinct species of reptile

Dravidosaurus is a controversial taxon of Late Cretaceous reptiles, variously interpreted as either a ornithischian dinosaur or a plesiosaur. The genus contains a single species, D. blanfordi, known from mostly poorly preserved fossils from the Coniacian of southern India.

<i>Kotasaurus</i> Extinct genus of dinosaurs

Kotasaurus is a genus of sauropod dinosaur from the Early Jurassic period (Sinemurian–Pliensbachian). The only known species is Kotasaurus yamanpalliensis. It was discovered in the Kota Formation of Telangana, India and shared its habitat with the related Barapasaurus. So far the remains of at least 12 individuals are known. The greater part of the skeleton is known, but the skull is missing, with the exception of two teeth. Like some sauropods, it had a tail club that would have been used for intraspecific combat or interpspecific defense.

<i>Cistecephalus</i> Assemblage Zone

The Cistecephalus Assemblage Zone is a tetrapod assemblage zone or biozone found in the Adelaide Subgroup of the Beaufort Group, a majorly fossiliferous and geologically important geological group of the Karoo Supergroup in South Africa. This biozone has outcrops located in the Teekloof Formation north-west of Beaufort West in the Western Cape, in the upper Middleton and lower Balfour Formations respectively from Colesberg of the Northern Cape to east of Graaff-Reinet in the Eastern Cape. The Cistecephalus Assemblage Zone is one of eight biozones found in the Beaufort Group, and is considered to be Late Permian in age.

<i>Daptocephalus</i> Assemblage Zone Biozone of fossils

The Daptocephalus Assemblage Zone is a tetrapod assemblage zone or biozone found in the Adelaide Subgroup of the Beaufort Group, a majorly fossiliferous and geologically important Group of the Karoo Supergroup in South Africa. This biozone has outcrops located in the upper Teekloof Formation west of 24°E, the majority of the Balfour Formation east of 24°E, and the Normandien Formation in the north. It has numerous localities which are spread out from Colesberg in the Northern Cape, Graaff-Reniet to Mthatha in the Eastern Cape, and from Bloemfontein to Harrismith in the Free State. The Daptocephalus Assemblage Zone is one of eight biozones found in the Beaufort Group and is considered Late Permian (Lopingian) in age. Its contact with the overlying Lystrosaurus Assemblage Zone marks the Permian-Triassic boundary.

<i>Eryosuchus</i> Extinct genus of temnospondyls

Eryosuchus is an extinct genus of capitosauroid temnospondyl from the Middle Triassic of northern Russia. It was a very large predator: the largest specimen known could reach up to 3.5 m (11.5 ft) in length, with a skull over 1 m long.

<span class="mw-page-title-main">Chigutisauridae</span> Extinct family of temnospondyls

Chigutisauridae is an extinct family of large temnospondyls. The only genera recognized as belonging to Chigutisauridae at the current time are all from Gondwana. Chigutisaurids first appeared during the Early Triassic in Australia. During the Late Triassic they became widely distributed in Gondwana, with fossils found in South Africa, India and South America. Koolasuchus from the Early Cretaceous of Australia represents the youngest known temnospondyl.

Indocoelacanthus robustus is a fossil sarcopterygian. The holotype specimen was found in Lower Jurassic-aged riverine sediment of the Kota formation, in the Pranhita-Godavari valley at Boraigudem limestone ridge, about 30 kilometers southeast of Sironcha, India. The holotype is preserved in the museum of the Indian Statistical Institute.

The Upper Dharmaram Formation is an Early Jurassic geologic formation found in Andhra Pradesh, India. Dinosaur remains are among the fossils that have been recovered from the formation.

The Intertrappean Beds are a Late Cretaceous and Early Paleocene geologic formation in India. The beds are found as interbeds between Deccan Traps layers, including the slightly older Lameta Formation. The formation spans the Cretaceous–Paleogene boundary, with a stratigraphic range of only a few hundred thousand years before and after the boundary, and a significant debate exists about whether specific sites belong to the Cretaceous or the Paleocene.

Godavarisaurus is an extinct genus of sphenodontian reptile from the Early-Middle Jurassic Kota Formation of Andhra Pradesh, India. It is known from jaw fragments. It was a small sphenodontian, with the skull estimated to be less than 2 centimetres (0.79 in) long. It is generally considered to be a relatively basal sphenodontian that lies outside Eusphenodontia.

The Pranhita–Godavari Basin is a northwest–southeast striking geological structural basin in eastern India. The basin contains up to 7 kilometres of sedimentary strata of late Carboniferous/Early Permian to Cretaceous age. The basin is 400 km in length with a width of about 100 km and is terminated by the coast of the Indian Ocean on the southeast end.

The Lower Dharmaram Formation is a sedimentary rock formation found in Andhra Pradesh, India. It is one of the formations of the Pranhita–Godavari Basin. It is of latest Norian and Rhaetian ages, and is notable for its fossils of early dinosaurs.

The Yerrapalli Formation is a Triassic rock formation consisting primarily of mudstones that outcrops in the Pranhita–Godavari Basin in southeastern India. The Yerrapalli Formation preserves fossils of freshwater and terrestrial vertebrates as well as trace fossils of invertebrates. The tetrapod fauna includes temnospondyl amphibians, archosauromorph reptiles, and dicynodonts.

Bharatagama is an extinct genus of lepidosaur from the Early Jurassic of India. It has been suggested to be one of the oldest known lizards and the oldest known iguanian. The type and only species is Bharatagama rebbanensis, named in 2002. Over one hundred fossils of Bharatagama have been found in the Kota Formation, which outcrops in the Pranhita–Godavari Basin and dates back to about 190 million years ago (Ma). Despite its abundance, Bharatagama is known only from isolated jaw bones mixed together in microvertebrate assemblages with equally fragmentary remains of fish, sphenodontians, dinosaurs, crocodylomorphs, and mammals. These fossils represent all stages of development, from hatchlings to adults. The total length of the skull in adult specimens is estimated to have been about 15 millimetres (0.59 in). Later analysis suggested that the taxon might be a member of Rhynchocephalia.

Rebbanasaurus is an extinct sphenodontian reptile known from remains found in the Early-Middle Jurassic Kota Formation of India. The type specimen is a partial jawbone which has acrodont teeth, with other known remains including fragments of the premaxilla, maxilla, and palatine. It was relatively small, with a skull estimated at 1.5–2.5 centimetres (0.59–0.98 in) long. It is generally considered to be a relatively basal sphenodontian that lies outside Eusphenodontia.

Panthasaurus is an extinct genus of large temnospondyl belonging to the family Metoposauridae that lived in India during the Late Triassic (Norian) of central India. It contains one species, Panthasaurus maleriensis from the Lower Maleri Formation of India.

The Kallamedu Formation is a Late Cretaceous (Maastrichtian) geologic formation located in the Ariyalur district of Tamil Nadu, India that forms part of the Ariyalur Group. It dates to the Maastrichtian of the Late Cretaceous. Dinosaur remains and petrified wood samples are among the known fossils recovered from this formation.

The Panchet Formation is an Early Triassic geological formation from the Damodar Valley of India.

The Gangapur Formation is a geological formation in Telangana, India. The Gangapur formation is Early Cretaceous in age. It forms a part of the Pranhita–Godavari Basin and overlies the Jurassic Kota Formation. The outcrops near the Gangapur village was first described in 1881 as the Gangapur beds. In 1969, the area was instituted as the Gangapur Formation. It was also determined that the Gangapur Formation extends from north of Nowgaon to the west of Gangapur and in the east up to Dharmaram and Paikasigudem. Fossils of Plants have been found in large quantities in the formation.

References

  1. 1 2 3 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. Bibcode:2018JPall..59...21G. doi:10.1007/s10933-016-9918-y. ISSN   0921-2728. S2CID   133167210.
  2. Kutty, T. S.; Jain, S. L.; Chowdhury, T. R. (1987). "Gondwana sequence of the northern Pranhita-Godavari Valley: its stratigraphy and vertebrate faunas" (PDF). Palaeobotanist. 36: 263–282. Retrieved 16 June 2023.
  3. 1 2 3 Lakshminarayana, G. (1994). "Stratigraphy and structural framework of the Gondwana sediments in the Pranhita-Godavari Valley, Andhra Pradesh". Gondwana Nine. 1 (2): 311–330.
  4. 1 2 Lakshminarayana, G. (2002). "Evolution in basin fill style during the Mesozoic Gondwana continental break-up in the Godavari Triple junction, SE India". Gondwana Research. 5 (1): 227–244. Bibcode:2002GondR...5..227L. doi:10.1016/S1342-937X(05)70906-0 . Retrieved 16 June 2023.
  5. Sengupta, S. (2003). "Gondwana sedimentation in the Pranhita–Godavari Valley: a review". Journal of Asian Earth Sciences. 21 (6): 633–642. Bibcode:2003JAESc..21..633S. doi:10.1016/S1367-9120(02)00052-4 . Retrieved 16 June 2023.
  6. Chinnappa, Chopparapu; Rajanikanth, Annamraju; Pauline Sabina, Kavali (2019). "Palaeofloras from the Kota Formation, India: palaeodiversity and ecological implications". Volumina Jurassica. 17: 1–16. doi:10.7306/vj.17.1 (inactive 2024-09-13).{{cite journal}}: CS1 maint: DOI inactive as of September 2024 (link)
  7. 1 2 3 Chatterjee, Sankar (2020). "The Age of Dinosaurs in the Land of Gonds". In Prasad, Guntupalli V.R.; Patnaik, Rajeev (eds.). Biological Consequences of Plate Tectonics. Vertebrate Paleobiology and Paleoanthropology. Cham: Springer International Publishing. pp. 181–226. doi:10.1007/978-3-030-49753-8_8. ISBN   978-3-030-49752-1. S2CID   229651571.
  8. Kutty, T.S.; Chatterjee, Sankar; Galton, Peter M.; Upchurch, Paul (2007). "Basal sauropodomorphs (Dinosauria: Saurischia) from the Lower Jurassic of India: their anatomy and relationships". Journal of Paleontology. 81 (6): 1552–1574. Bibcode:2007JPal...81.1218K. doi:10.1666/04-074.1. S2CID   130508134.
  9. Bandyopadhyay, Saswati; Sengupta, Dhurjati Prasad (2006). "Vertebrate faunal turnover during the Triassic-Jurassic transition: an Indian scenario". New Mexico Museum of Natural History and Science Bulletin. 37: 77–85.
  10. Vijaya; Prasad, G. V. R. (2001). "Age of the Kota Formation, Pranhita-Godavari Valley, India: a palynological approach". Journal of the Palaeontological Society of India. 46: 77–93. doi:10.1177/0971102320010108.
  11. 1 2 3 Prasad, Guntupalli V R; Manhas, Brijesh K (2002). "Triconodont mammals from the Jurassic Kota Formation of India". Geodiversitas. 24 (2): 445–464.
  12. 1 2 3 4 5 6 7 Prasad, Guntupalli V. R.; Parmar, Varun (2020). "First Ornithischian and Theropod Dinosaur Teeth from the Middle Jurassic Kota Formation of India: Paleobiogeographic Relationships". In Prasad, Guntupalli V.R.; Patnaik, Rajeev (eds.). Biological Consequences of Plate Tectonics. Cham: Springer International Publishing. pp. 1–30. ISBN   978-3-030-49752-1.
  13. 1 2 3 Goswami, Suparna; Ghosh, Parthasarathi (2021), "Freshwater Microbialites in Early Jurassic Fluvial Strata of the Pranhita-Godavari Gondwana Basin, India", Limnogeology: Progress, Challenges and Opportunities, Cham: Springer International Publishing, pp. 549–578, doi:10.1007/978-3-030-66576-0_18, ISBN   978-3-030-66575-3, S2CID   237995280 , retrieved 2024-02-07
  14. Rudra, D. K.; Maulik, P. K. (1987). "Stromatolites from Jurassic freshwater limestone, India". Mesozoic Research. 1 (3): 135–146.
  15. 1 2 Datta, Shantanu; Sain, Arnab; Goswami, Suparna; Ghosh, Parthasarathi; Arenas, Concepción Abad (2024-05-20). "Origin of ferruginous coated grains in the Lower Jurassic palustrine limestones of the Pranhita Godavari Basin, India". The Depositional Record. doi:10.1002/dep2.285.
  16. 1 2 3 4 5 Misra, R.S.; Satsangi, P.P. (1979). "Ostracods from Kota Formation". Proceedings of the Colloquium on Micropalaeontology and Stratigraphy. Geological Survey of India, Miscellaneous Publication. 45 (5): 73–80.
  17. 1 2 3 Govindan, A. (1975). "Jurassic fresh water ostracods from the Kota limestones of India". Palaeontology. 18 (4): 207–216. Retrieved 15 June 2023.
  18. 1 2 3 4 5 6 Tasch, P. (1987). Fossil Conchostraca of the Southern Hemisphere and continental drift: Paleontology, biostratigraphy, and dispersal (165 ed.). Geological Society of America.
  19. 1 2 Ghosh, S. C.; Datta, A.; Nandi, A.; Mukhopadhyay, S. (1987). "Estheriid zonation in the Gondwana" (PDF). Paleobotanist: 99–123. Retrieved 16 June 2023.
  20. Engel, M. S.; Pérez-de La Fuente, R. (2012). "A new species of roach from the Jurassic of India (Blattaria: Mesoblattinidae)". Journal of the Kansas Entomological Society. 85 (1): 1–4. doi:10.2317/JKES110524.1. S2CID   86567655 . Retrieved 15 June 2023.
  21. Handlirsch, A. (1906). Die Fossilen Insekten und die Phylogenie der Rezenten Formen: Ein Handbuch für Paläontologen und Zoologen. Vol. 31. pp. 1–640. Retrieved 15 June 2023.
  22. 1 2 Rasnitsyn., A. P. (2008). "New hymenopteran insects (Insecta: Vespida) from the lower or middle Jurassic of India". Paleontological Journal. 42 (1): 81–85. Bibcode:2008PalJ...42...81R. doi:10.1134/S0031030108010139. S2CID   85535556 . Retrieved 15 June 2023.
  23. Pérez-de La Fuente, R.; Heads, S.W.; Hinojosa-Díaz, I. A.; Engel, M. S. (2012). "The first record of Protogryllinae from the Jurassic of India (Orthoptera: Protogryllidae)". Journal of the Kansas Entomological Society. 85 (1): 53–58. doi:10.2317/JKES111103.1. S2CID   83496373 . Retrieved 15 June 2023.
  24. Mostovski, M. B.; Jarzembowski, E. A. (2000). "The first brachycerous flies (Diptera: Rhagionidae) from the Lower Jurassic of Gondwana" (PDF). Paleontological Journal. 34 (3): 367–369. Retrieved 15 June 2023.
  25. 1 2 Jain, S. L. (1974). "Indocoelacanthus robustus n. gen., n. sp. (Coelacanthidae, Lower Jurassic), the first fossil coelacanth from India". Journal of Paleontology. 48 (1): 49–62. JSTOR   1303105 . Retrieved 15 June 2023.
  26. 1 2 3 4 5 6 Prasad, G. V.; Manhas, B. K.; Arratia, G. (2004). "Elasmobranch and actinopterygian remains from the Jurassic and Cretaceous of India" (PDF). Mesozoic Fishes. 3 (1): 625–638. Retrieved 15 June 2023.
  27. Sykes (1851). "On a Fossil Fish from the Table-land of the Deccan, in the Peninsula of India: With a Description of the Specimens. By Sir P. de MG Egerton". FRS, GS. Quarterly Journal of the Geological Society. 7 (2): 272–273. doi:10.1144/GSL.JGS.1851.007.01-02.49. S2CID   131619174 . Retrieved 15 June 2023.
  28. Yadagiri, P.; Satsangi, P. P.; Prasad, K. N. (1980). "The Piscean Fauna from the Kota Formation of the Pranhita-Godavari Valley, Andhra Pradesh". Geological Survey of India. 45.
  29. 1 2 3 4 5 6 7 Yadagiri, P. M. (1986). "Lower Jurassic lower vertebrates from Kota Formation, Pranhita-Godavari Valley, India" (PDF). Journal of the Palaeontological Society of India. 31 (3): 89–962. doi:10.1177/0971102319860111 . Retrieved 15 June 2023.
  30. 1 2 Jain, S. L. (1973). "New specimens of Lower Jurassic holostean fishes from India". Palaeontology. 16 (1): 149–177. Retrieved 15 June 2023.
  31. Yadagiri, P.; Prasad, K. N. (1977). "On the discovery of new Pholidophorus fishes from the Kota Formation, Adilabad district, Andhra Pradesh". Geological Society of India. 18 (8): 436–444. Retrieved 15 June 2023.
  32. 1 2 Prasad, G V R; Manhas, B K (2007). "A new docodont mammal from the Jurassic Kota Formation of India". Palaeontologia Electronica. 10 (2).
  33. Prasad, G.V.R.; Parmar, V.; Kumar, D. (2015). "A Jurassic australosphenidan mammal from India: Implications for mammalian evolution and distribution in former Gondwanaland". Abstract Volume XII International Symposium on Antarctic Earth Science (ISAES 2015). 12 (1): 462–463. Retrieved 15 June 2023.
  34. 1 2 Yadagiri, P. (1984). "New symmetrodonts from Kota Formation (Early Jurassic), India". Journal of the Geological Society of India. 25 (2): 514–621. Retrieved 15 June 2023.
  35. Datta, P. M.; Das, D. P. (2001). "Indozostrodon simpsoni, gen. et sp. nov., an Early Jurassic megazostrodontid mammal from India". Journal of Vertebrate Paleontology. 21 (3): 528–234. doi:10.1671/0272-4634(2001)021[0528:ISGESN]2.0.CO;2. JSTOR   20061981. S2CID   85979614 . Retrieved 15 June 2023.
  36. Parmar, Varun; Prasad, Guntupalli V. R.; Kumar, Deepak (2013). "The first multituberculate mammal from India". Naturwissenschaften. 100 (6): 515–523. Bibcode:2013NW....100..515P. doi:10.1007/s00114-013-1047-0. eISSN   1432-1904. ISSN   0028-1042. PMID   23644519. S2CID   253638698.
  37. Kusuhashi, Nao; Wang, Yuan-Qing; Jin, Xun (2020). "A New Eobaatarid Multituberculate (Mammalia) from the Lower Cretaceous Fuxin Formation, Fuxin-Jinzhou Basin, Liaoning, Northeastern China". Journal of Mammalian Evolution. 27 (4): 605–623. doi:10.1007/s10914-019-09481-w. eISSN   1573-7055. ISSN   1064-7554. S2CID   201283262.
  38. Datta, PM (1981). "The first Jurassic mammal from India". Zoological Journal of the Linnean Society of London. 73 (2): 307–312. doi:10.1111/j.1096-3642.1981.tb01598.x . Retrieved 15 June 2023.
  39. Yadagiri, P. (1985). "An amphidontid symmetrodont from the Early Jurassic Kota Formation, India". Zoological Journal of the Linnean Society. 85 (3): 411–417. doi:10.1111/j.1096-3642.1985.tb01518.x . Retrieved 15 June 2023.
  40. Prasad, G.V.R.; B.K., Manhas (1997). "A new symmetrodont mammal from the Lower Jurassic Kota Formation, Pranhita-Godavari Valley, India". Geobios. 30 (4): 563–572. Bibcode:1997Geobi..30..563P. doi:10.1016/S0016-6995(97)80122-2 . Retrieved 15 June 2023.
  41. 1 2 3 4 Evans, Susan E.; Prasad, G. V. R.; Manhas, B. K. (2002-07-08). "Fossil lizards from the Jurassic Kota Formation of India". Journal of Vertebrate Paleontology. 22 (2): 299–312. doi:10.1671/0272-4634(2002)022[0299:FLFTJK]2.0.CO;2. eISSN   1937-2809. ISSN   0272-4634. JSTOR   4524224. S2CID   131207549 . Retrieved 15 June 2023.
  42. Conrad, Jack L (2018-06-28). "A new lizard (Squamata) was the last meal of Compsognathus (Theropoda: Dinosauria) and is a holotype in a holotype". Zoological Journal of the Linnean Society. 183 (3): 584–634. doi:10.1093/zoolinnean/zlx055. eISSN   1096-3642. ISSN   0024-4082.
  43. 1 2 3 Evans, S. E.; Prasad, G. V. R.; Manhas, B. K. (2001). "Rhynchocephalians (Diapsida: Lepidosauria) from the Jurassic Kota Formation of India". Zoological Journal of the Linnean Society. 133 (3): 309–334. doi: 10.1111/j.1096-3642.2001.tb00629.x . ISSN   0024-4082.
  44. Datta, P.M.; Manna, P.; Ghosh, S.C.; Das, D. P. (April 2000). "The First Jurassic turtle from India" (PDF). Palaeontology. 43 (1): 99–109. Bibcode:2000Palgy..43...99D. doi:10.1111/1475-4983.00120. ISSN   0031-0239. S2CID   129794477.
  45. 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.
  46. 1 2 T. T., Nath; Yadagiri, P.; Moitra, K. (2002). "First record of armoured dinosaur from the Lower Jurassic Kota Formation, Pranhita-Godavari Valley, Andhra Pradesh". Journal of the Geological Society of India. 59 (6): 575–577. Retrieved 15 June 2023.
  47. 1 2 3 Galton, Peter M. (2019-02-28). "Earliest record of an ankylosaurian dinosaur (Ornithischia: Thyreophora): Dermal armor from Lower Kota Formation (Lower Jurassic) of India". Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 291 (2): 205–219. doi:10.1127/njgpa/2019/0800. ISSN   0077-7749. S2CID   134302379.
  48. Owen, R. (1852). "Note on the crocodilian remains accompanying Dr. T.L. Bell's paper on Kotah". Proceedings of the Royal Society of London. 7: 233.
  49. 1 2 Jain, S. L. (1974). "Jurassic pterosaur from India". Geological Society of India. 15 (3): 330–335. Retrieved 15 June 2023.
  50. Padian, Kevin (2008). "The Early Jurassic pterosaur Campylognathoides Strand, 1928". Special Papers in Palaeontology. 80.
  51. 1 2 3 4 5 6 7 8 9 Rao, C.N.; Shah, S.C. (1963). "On the occurrence of pterosaur from the Kota-Maleri beds, Chanda district, Maharashtra". Records of the Geological Survey of India. 92 (2): 315–318.
  52. Ulansky, R. E. (2014). "Evolution of the stegosaurs (Dinosauria; Ornithischia)" (PDF). Dinologia: 1–35. Retrieved 15 June 2023.
  53. Maidment, Susannah C. R.; Strachan, Sarah J.; Ouarhache, Driss; Scheyer, Torsten M.; Brown, Emily E.; Fernandez, Vincent; Johanson, Zerina; Raven, Thomas J.; Barrett, Paul M. (2021-09-23). "Bizarre dermal armour suggests the first African ankylosaur". Nature Ecology & Evolution. 5 (12): 1576–1581. Bibcode:2021NatEE...5.1576M. doi:10.1038/s41559-021-01553-6. ISSN   2397-334X. PMID   34556830. S2CID   237616095.
  54. 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". Palaeontology. 53 (3): 533–569. Bibcode:2010Palgy..53..533B. doi: 10.1111/j.1475-4983.2010.00933.x . eISSN   1475-4983. ISSN   0031-0239. S2CID   140566138.
  55. Yadagiri, P. (1982). "Osteological studies of a carnosaurian dinosaur from Lower Jurassic Kota Formation: Andhra Pradesh". Geological Survey of India, Report for Field Season Programme. 4 (1): 2–7. Retrieved 15 June 2023.
  56. Prasad, G.V. R. (1986). "Microvertebrate assemblage from the Kota Formation (Early Jurassic) of Gorlapalli, Adilabad District, Andhra Pradesh". Indian Society of Geoscientists Bulletin. 2 (3): 3–13.
  57. 1 2 3 4 Yadagiri, P. (2001-07-20). "The osteology of Kotasaurus yamanpalliensis, a sauropod dinosaur from the Early Jurassic Kota Formation of India". Journal of Vertebrate Paleontology. 21 (2): 242–252. doi:10.1671/0272-4634(2001)021[0242:TOOKYA]2.0.CO;2. JSTOR   20061951. S2CID   86345394.
  58. Chatterjee, S.; Scotese, C. R.; Bajpai, S. (2017). "The restless Indian plate and its epic voyage from Gondwana to Asia: Its tectonic, paleoclimatic, and paleobiogeographic evolution". Geological Society of America Special Paper. 529 (2): 1–147. Retrieved 15 June 2023.
  59. 1 2 3 4 5 Chinnappa, C.; Rajanikanth, A.; Kavali, P. S. (2019). "Palaeofloras from the Kota Formation, India: palaeodiversity and ecological implications". Volumina Jurassica. 17 (1): 1–16. Retrieved 16 June 2023.
  60. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 Jayashri Shivajirao, Jadhav (1995). "Studies on the fossil flora of Kota formation". Thesis Shivaji University, Department of Botany. 1 (1). Retrieved 18 June 2023.
  61. Chinnappa, C.; Kavali, P. S. (2020). "Agathoxylon santacruzense Kloster & Gnaedinger from the Lower–Middle Jurassic Kota Formation, India and its paleoenvironmental implications". Revista Brasileira de Paleontologia. 23 (4): 227–233. doi: 10.4072/rbp.2020.4.01 . S2CID   230537208 . Retrieved 16 June 2023.
  62. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 Rajanikanth, A.; Sukh-Dev, A. (1989). "The Kota Formation: fossil flora and stratigraphy". Geophytology. 19 (8): 52–64.
  63. Chinnappa, C.; Rajanikanth, A. (2016). "A New Species of Circoporoxylon from the Kota Formation (Jurassic), Pranhita-Godavari Basin, India, and Palaeobiogeography of the Genus". Ameghiniana. 53 (6): 675–684. doi:10.5710/AMGH.19.07.2016.2954. S2CID   132877882 . Retrieved 16 June 2023.
  64. Biradar, N.V.; Mahabale, T.S. (1978). "Occurrence of Ginkgo like wood in east Gondwanas of India". Recent Advances in Geology. 5 (3): 146–153.
  65. Chinnappa, C. H.; Kavali, P. S.; Rajanikanth, A. (2019). "Protaxodioxylon from the Late Jurassic to Early Cretaceous Kota Formation, Pranhita-Godavari Basin, India". Paleontological Journal. 53 (3): 1206–1215. Bibcode:2019PalJ...53.1206C. doi:10.1134/S0031030119110029. S2CID   212642535 . Retrieved 16 June 2023.
  66. Murlidhar, R.G. (1991). "On a silicified wood from the Kota formation (Liassic) of the Pranhita Godavari Basin". Journal of Swamy's Botany. 8 (5): 107–112.