What is "kaganaias"

Kaganaias (meaning ' Kaga water nymph') is an extinct genus of mosasauroid lizard that lived in what is now Japan during the Early Cretaceous. Kaganaias was semi-aquatic and is the only known aquatic squamate to be found in Asia and is also the only known aquatic squamate known from before the Cenomanian stage of the Cretaceous. It is also the first to be found in an inland area, instead of on the coast where aquatic squamates are commonly found. Its generic name is derived from Kaga Province, the old name for the Ishikawa Prefecture where the specimens were found, while the species name hakusanensis comes from the mountain that gives its name to Hakusan the city near its find site. The geological formation in which the specimens were found, the Tetori Group, stands alongside the Tetori River and has been the site of numerous other finds including molluscs, dinosaurs, fish and pterosaurs.

Although Kaganaias is known to be in the Mosasaur family, it is unclear where; it has been assigned to Platynota ( Varanoidea) for the time being.