Plesiosauridae

Plesiosaurids
Temporal range: Early Jurassic - Late Cretaceous?
Plesiosaurus skeleton
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Superorder: Sauropterygia
Order: Plesiosauria
Superfamily: Plesiosauroidea
Family: Plesiosauridae
Gray, 1825
Genera

The Plesiosauridae are a monophyletic family of plesiosaurs named by John Edward Gray in 1825.