Pinjor Formation

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Pinjor Formation
Stratigraphic range: Pleistocene
~2.28–1.6  Ma
Type Geological formation
Underlies Tatrot Formation
Location
Coordinates 30°42′N76°48′E / 30.7°N 76.8°E / 30.7; 76.8
Approximate paleocoordinates 29°12′N77°18′E / 29.2°N 77.3°E / 29.2; 77.3
Region Hariyana, Punjab India, Himachal Pradesh, Punjab Pakistan, Chandigarh
CountryFlag of India.svg India
India relief location map.jpg
Cyan pog.svg
Pinjor Formation (India)

The Pinjor Formation is a Cenozoic geologic formation in India. The fossils of large crocodilians and mammals have been recovered from the formation. [1]

Contents

Paleobiota

Reptiles

Reptiles from the Pinjor Formation
GenusSpeciesMaterialLocationNotesImages
Rhamphosuchus [2] R. crassidenspiece of rostrum, middle portion of craniurns, hind portion of mandibular symphysis, quadrate and quadratojugal, partial mandibular symphysis, several vertebrae, left ilium, small left ilium, right fibula, and several scute. Chandigarh A large gavialid
Rhamphosuchus crassidens.jpg
Gavialis G. browni Chandigarh Gharials
Gharial.jpg
G. gangeticus
G. sp.
Crocodylus C. palustris Chandigarh Mugger crocodiles
PK Kirthar NP asv2020-02 img25.jpg
C. biporcatus
C. palaeoindicus
Varanus [3] V. sivalensis Distal end of right humerus and dorsal vertebrae Chandigarh A large monitor lizard similar to the Komodo dragon
VaranusSivalensis.png
Omegachelys O. sahnii Uttar Pradesh,

Himachal Pradesh

An emydid turtle
Geoclemys G. hamiltonii Uttar Pradesh A geoemydid turtle
Geoclemys hamiltonii Biswanath 01.jpg
Hardella H. thurjii Uttar Pradesh A geoemydidae turtle
Hardella thurjii Hardwicke.jpg
Megalochelys sp. Chandigarh A tortoise
Colossochelys atlas.jpg

Mammals

Mammals from the Pinjor Formation
GenusSpeciesMaterialLocationNotesImages
Elephas E. maximus Chandigarh Asian elephants
Asian Elephant tusker 03.jpg
E. hysudricus
E. planifrons
E. platycephalus
Mus M. linnaeusi Chandigarh A rat
M. flynni
Tatera T. pinjoricus Chandigarh A gerbil
T. sp.
Punjabitherium P. platyrhinum Punjab A rhinoceros
Sivatherium S. giganteum Chandigarh A giraffoid MEPAN Sivatherium.jpg
Coelodonta C. platyrhinus Chandigarh A woolly rhinoceros Coelodonta antiquitatis by Benjamin Langlois.jpg
Camelus C. sivalensis [4] Chandigarh A camel
Stegodon S. bombifrons Chandigarh A stegodontid
S. insignis
Vishnuictis V. durandi Chandigarh A large viverrid
Enhydriodon E. sivalensis Himachal Pradesh A large otter
Crocidura sp. Chandigarh A shrew
Golunda sp. Chandigarh A murine rodent
Bandicota sp. Chandigarh A murid rodent
Cremnomys C. blanfordi Chandigarh A rodent
Crocidura sp. Chandigarh A murid rodent
Dilatomys sp. Chandigarh A murid rodent
Canis C. pinjorensis Chandigarh A wolf
C. cautleys
Megantereon M. falconeri Chandigarh A smilodont Megantereon cultridens skeleton.jpg
M. palaeindicus
Viverra V. bakeri Chandigarh A civet
Amblonyx A. indicus Chandigarh An otter
sp.
Panthera P. cristata Chandigarh A panther
Agriotherium A. sivalensis Chandigarh A bear
Mellivora M. sivalensis Chandigarh A Honey badger
Crocuta C. sivalensis Chandigarh A Hyena
C. felina
C. colvini

Crustaceans

Crustaceans from the Pinjor Formation
GenusSpeciesMaterialLocationNotesImages
Potamon sp. Chandigarh A crab

References

  1. V. Kumaravel, S. J. Sangode; Rohtash Kumar, N. Siva Siddaiah (2005). "Magnetic polarity stratigraphy of Plio–Pleistocene Pinjor Formation (type locality), Siwalik Group, NW Himalaya, India" . Zoological Journal of the Linnean Society. doi:10.1093/zoolinnean/zlad184.
  2. Martin, J. E. (2018). "The taxonomic content of the genus Gavialis from the Siwalik Hills of India and Pakistan" (PDF). Papers in Palaeontology. 5 (3): 483–497. doi:10.1002/spp2.1247.
  3. Hocknull, Scott; Piper, Philip; Van den Bergh, Gert; Due, Rokus; Morwood, Michael; Kurniawan, Iwan (2009). "Dragon's Paradise Lost: Palaeobiogeography, Evolution and Extinction of the Largest-Ever Terrestrial Lizards (Varanidae)". PLOS ONE. 4 (9): e7241. Bibcode:2009PLoSO...4.7241H. doi: 10.1371/journal.pone.0007241 . PMC   2748693 . PMID   19789642.
  4. Falconer, Hugh (1868). Palæontological Memoirs and Notes of the Late Hugh Falconer: Fauna antiqua sivalensis. R. Hardwicke. p.  231.