Dravidosaurus ‭(‬Dravidanadu lizard‭)

Short Info

Dravidosaurus ‭(‬Dravidanadu lizard‭)

Phonetic : Dray-vid-o-sore-us.

Named By : P.‭ ‬Yadagiri‭ & ‬K.‭ ‬Ayyasami‭ ‬-‭ ‬1979

Diet : Piscivore

Size : Estimated 3 meters long

Type of Dinosaur : Armored Dinosaur

Type Species : D.‭ ‬blanfordi‭ (‬type‭)‬

Found in : India

When it Lived : Late Cretaceous, 90-84 million years ago

Dravidosaurus (meaning “Dravidanadu lizard”, Dravidanadu being a region in southern India where the remains of the lizard were located) is a genus that has been criticized as a source of reptiles from the prehistoric period. It was first identified as the last stegosaurian which is the family comprised of “plated” dinosaurs. The estimated length is three meters (10 feet) this could also have been the smallest within the group. Certain studies have concluded that the bones belong to a marine reptile from the plesiosaurian. But, later studies have confirmed their stegosaurian nature.

Dravidosaurus was a dinosaur that lived during its Late Cretaceous period (Coniacian stage) of the present-day India. It was only discovered through fragments of remains that were initially described as consisting of a fragmented skull, tooth, an ilium, a sacrum an ischium, a dermal plate and spike. The deteriorated remains were found in the sea near Ariyalur within the State of Tamil Nadu in South India (Trichinopoly Group). They were identified in 1979 in 1979 by P.M. Yadagiri and Krishnan Ayyasami to be the species type Dravidosaurus blanfordi The specific name honoring William Thomas Blanford. The partial skull of the holotype has been classified under GSI SR Pal 1 and other specimens are cataloged as GSI SR Pal 2-7.

As early as 1991 Sankar Chatterjee visited the site and asserted without presenting any specific morphological evidence that Dravidosaurus was built on plesiosaurian pelvic and hindlimb parts, the species being an unspecified nomen dubium. But, his assertion was discredited by Galton and Upchurch (2004) and Upchurch (2004) who observed that the tooth, skull, and plate of Dravidosaurus are not plesiosaurian as depicted in. Galton as well as Ayyasami (2017) reiterated the stegosaurian designation of Dravidosaurus and stated that the remains are not like plesiosaurian hindlimb and pelvic elements. They stated that stegosaurian remains found in the Dravidosaurus type area are being examined with one of the initial researchers of Dravidosaurus.

Source: Wikipedia