Evolutionary Context
The species was named Vasuki indicus in honor of Vasuki, the mythical serpent associated with the Hindu deity Shiva. The second part of the name refers to India, where the fossils were discovered.
Vasuki belonged to Madtsoiidae, an extinct family of snakes that survived for roughly 100 million years, from the Late Cretaceous to the Late Pleistocene. Members of this group occupied regions including India, Africa, Europe, South America, and Australia. The researchers found that its closest relatives included Madtsoia pisdurensis, a fossil snake from ancient India, and Gigantophis garstini, another large prehistoric snake known from North Africa.
These relationships suggest that a lineage of giant madtsoiid snakes originated on the Indian subcontinent before spreading into other parts of the world. As India moved northward and collided with Asia around 50 million years ago, changing geographic connections may have allowed these snakes to disperse through southern Eurasia and eventually into Africa during the Eocene, approximately 56 to 34 million years ago.