Plesiosauria

== Translingual == === Etymology === From Plesiosaurus +‎ -ia. === Proper noun === †Plesiosauria A taxonomic order within the class Reptilia – the plesiosaurs. ==== Hypernyms ==== (order): Eukaryota – superkingdom; Animalia – kingdom; Bilateria – subkingdom; Deuterostomia – infrakingdom; Chordata – phylum; Vertebrata – subphylum; Gnathostomata – infraphylum; Tetrapoda – superclass; Reptilia – class; Eureptilia, Romeriida - clades; Diapsida - subclass; Lepidosauromorpha - infraclass; †Sauropterygia - superorder ==== Hyponyms ==== (infraorder): Plesiosauroidea, Pliosauroidea - suborders; incertae sedis === References === Plesiosauria on Wikipedia.Wikipedia Plesiosauria on Wikispecies.Wikispecies Category:Plesiosauria on Wikimedia Commons.Wikimedia Commons “Plesiosauria”, in Paleobiology Database, 2026