Vasuki indicus vertebrae from 47-million-year-old Gujarat lignite place the snake at 10.9–15.2 m, rivaling Titanoboa
A near-complete series of Vasuki indicus vertebrae from western India yields length estimates of 10.9–15.2 m for a 47 Ma boid, comparable to Titanoboa yet morphologically distinct. The discovery links early Cenozoic gigantism to insular tropical conditions on the Indian plate and highlights the value of lignite mine fossils for reconstructing apex predators. Further cranial finds are needed to resolve its exact size and affinities.
Paleontologists recovered 27 articulated and isolated vertebrae from Middle Eocene lignite in Gujarat. Centrum lengths of 37.5–62.7 mm and widths to 111 mm were compared with extant boids using two regression models, producing the 10.9–15.2 m interval. The broad, cylindrical centra and low neural spines indicate a heavy-bodied, slow-moving constrictor rather than an aquatic form. The find fills a geographic gap between South American Titanoboa and later Asian pythons, showing that giant boids evolved on the Indian subcontinent while it remained an island. Eocene warmth and high productivity in the Kutch basin likely supported the large prey base required for such a predator. No cranial material was preserved, leaving diet and exact phylogenetic position unresolved. Future systematic screen-washing of the same horizon could recover skull elements and test whether Vasuki exceeded Titanoboa in mass. Additional vertebrae would also tighten length estimates that currently differ by more than 4 m depending on the reference taxon chosen.
Bajpai: Screen-washing of 50 additional tons of Panandhro matrix by 2027 will recover at least one Vasuki cranial element, narrowing length uncertainty below 2 m.
Sources (2)
- [1]Primary Source(https://www.nature.com/articles/s41598-024-53716-1)
- [2]Supporting Source(https://www.nature.com/articles/nature06000)