
Dinilysia (meaning "terrible ilysia") is an extinct genus of snake from the Late Cretaceous (Coniacian) of South America. Dinilysia was a relatively large ambush predator, measuring approximately long. The skull morphology of Dinilysia is similar to boids, suggesting that it was able to consume large prey., Living in a desert-like environment, Dinilysia is likely a terrestrial or a semi-fossorial animal. thumb|left|Hypothetical appearance of Dinilysia patagonica (reconstruction based on skeletal and other features).
Dinilysia (meaning "terrible ilysia") is an extinct genus of snake from the Late Cretaceous (Coniacian) of South America. Dinilysia was a relatively large ambush predator, measuring approximately long. The skull morphology of Dinilysia is similar to boids, suggesting that it was able to consume large prey., Living in a desert-like environment, Dinilysia is likely a terrestrial or a semi-fossorial animal. thumb|left|Hypothetical appearance of Dinilysia patagonica (reconstruction based on skeletal and other features).
== Physiology and lineage == left|thumb|Bony inner ear labyrinth of Dinilysia patagonica The Dinilysia patagonica is a stem snake that is very closely related to the original ancestor of the clade of crown snakes. Once the fossil of the snake was discovered, an x-ray computed tomography was used to build a digitized endocast of its inner ear. The results displayed that the Dinilysia patagonica's inner ear anatomy had three main parts. It had a large spherical vestibule, large foramen ovale, and slender semicircular canals in its inner ear.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).