Current AffairsEnvironmnet

Footprints of dinosaurs species found in the Thar desert

In a major discovery, footprints of three species of dinosaurs have been found in the Thar desert in Rajasthan’s Jaisalmer district.

  • The footprints, made in the sediment or silt of the seashore, later become permanently stone-like.
  • They belong to three species of dinosaurs — Eubrontes cf. giganteusEubrontes glenrosensis and Grallator tenuis.
  • While the giganteus and glenrosensis species have 35 cm footprints, the footprint of the third species was found to be 5.5 cm.
  • The dinosaur species are considered to be of the theropod type, with the distinguishing features of hollow bones and feet with three digits.
  • All three species, belonging to the early Jurassic period, were carnivorous.
  • Eubrontes could have been 12 to 15 metres long and weighed between 500 kg and 700 kg, while the height of the Grallator is estimated to have been two metres, as much as a human, with a length of up to three metres.
  • The discovery of dinosaur footprints prove the presence of the giant reptiles in the western part of the State, which formed the seashore to the Tethys Ocean during the Mesozoic era.
  • Careful geological observations enabled the scientists to interpret ancient environments in which the rocks of the footprints, which were once soft sediments, were deposited.
  • Geochemical analyses and calculation of weathering indices showed that the hinterland climate was seasonal to semi-arid during the deposition of the footprints.
  • Fieldwork in the Kutch and Jaisalmer basins has suggested that after the main transgression during the early Jurassic period, the sea level changed several times.
  • Spatial and temporal distribution of sediments and traces of fossils and post-depositional structures provided an indication to this phenomenon.
Tags: Current Affairs, Environmnet

More Similar Posts

November 2021
M T W T F S S
1234567
891011121314
15161718192021
22232425262728
2930  
Most Viewed Posts
Menu