Hydrorion brachypterygius

Hydrorion
Skeleton
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Sauropsida
Superorder:	Sauropterygia
Order:	Plesiosauria
Family:	Plesiosauridae
Genus:	Hydrorion

Hydrorion (meaning 'water hunter') is an extinct genus of plesiosaur. It was found in Jurassic formations in Germany. The only species is Hydrorion brachypterygius.

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Wikipedia