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 gharial
Rhamphosuchus crassidens 7.JPG
Gavialis G. browni Chandigarh Gharials
Gharial.jpg
G. gangeticus
G. sp.
Crocodylus C. palustris Chandigarh Mugger Crocodiles
C. biporcatus
C. palaeoindicus
Varanus [3] V. sivalensis Distal end of right humerus and dorsal vertebrae Chandigarh A large monitor lizard similar to Komodo dragon
Omegachelys O. sahnii Uttar Pradesh,

Himachal Pradesh

A Emydidae Turtle.
Geoclemys G. hamiltonii Uttar Pradesh A Geoemydidae Turtle.
Hardella H. thurjii Uttar Pradesh A Geoemydidae Turtle.
Megalochelys sp. Chandigarh A Soricidae.

Mammals

Mammals from the Pinjor Formation
GenusSpeciesMaterialLocationNotesImages
Elephas E. maximus Chandigarh Asian elephants.
Asian Elephant tusker 03.jpg
E. platycephalus
E. hysudriscus
E. planifrons
Mus M. linnaeusi Chandigarh A Rat.
M. flynni
Tatera T. pinjoricus Chandigarh A Gerbillinae.
T. sp.
Punjabitherium P. platyrhinum Punjab A Rhinoceros.
Sivatherium S. giganteum Chandigarh A Giraffe.
Coelodonta C. platyrhinus Chandigarh A Woolly rhinoceros.
Camelus C. sivalensis [4] Chandigarh A Camel.
Stegodon S. bombifrons Chandigarh A Stegodon.
S. insignis
Vishnuictis V. hinduiensis Chandigarh A large Viverrid.
Enhydriodon E. sivalensis Himachal Pradesh A large Otter.
E. falconeri
Crocidura sp. Chandigarh A Soricidae.
Golunda sp. Chandigarh A Murine.
Bandicota sp. Chandigarh A Muridae.
Cremnomys C. blanfordi Chandigarh A Rodent.
Crocidura sp. Chandigarh A Muridae.
Dilatomys sp. Chandigarh A Muridae.

Crustaceans

Mammals from the Pinjor Formation
GenusSpeciesMaterialLocationNotesImages
Potamon sp. Chandigarh A Crab.

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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.