†unranked clade Shastasauria Motani 1999 (ichthyosaur)
Full reference: R. Motani. 1999. Phylogeny of the Ichthyopterygia. Journal of Vertebrate Paleontology 19(3):473-496
Parent taxon: Merriamosauria according to R. Motani 1999
Sister taxa: Californosauridae, Euichthyosauria, Guanlingsauridae, Merriamosauridae, Parvipelvia, Shastasauridae, Shonisauridae, Thalattoarchon
Subtaxa: none
Ecology: nektonic carnivore