Asprosaurus () is an extinct genus of anguimorph lizard from the Late Cretaceous (Campanian) of South Korea. The genus contains a single species, A. bibongriensis, which is the first Mesozoic lizard to have been discovered on the Korean peninsula. Initially classified as a possible monstersaurian, Asprosaurus has been subsequently suggested to be a probable mosasauroid, an extinct group of marine lizards during the Late Cretaceous.
Asprosaurus () is an extinct genus of anguimorph lizard from the Late Cretaceous (Campanian) of South Korea. The genus contains a single species, A. bibongriensis, which is the first Mesozoic lizard to have been discovered on the Korean peninsula. Initially classified as a possible monstersaurian, Asprosaurus has been subsequently suggested to be a probable mosasauroid, an extinct group of marine lizards during the Late Cretaceous.
==Discovery and naming== The holotype of Asprosaurus (KDRC-BB4) is an associated specimen consisting of partial cranial and postcranial material. Initially interpreted as a turtle fossil, it was discovered in 2000 from the Seonso Conglomerate, one of the rock units that form the Boseong Bibong-ri Dinosaur Egg Site which also yielded the fossils of an ornithischian dinosaur Koreanosaurus and over 200 dinosaur eggs.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).