Classification
Sauropterygia
Suborder
›
Plesiosauria
Order
›
Plesiosauroidea
Superfamily
›
Elasmosauridae
Family
›
Thalassiosaurus
Genus
Images 1
Bibliography
Original description
S. P. Welles. 1943. Elasmosaurid plesiosaurs with description of new material from California and Colorado. Memoirs of the University of California 13:125-254