†unranked clade Euichthyosauria 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 B. C. Moon 2017
See also Ji et al. 2016, McGowan and Motani 2003, Moon 2019 and Motani 1999
Sister taxa: Besanosauridae, Californosauridae, Guanlingsauridae, Merriamosauridae, Shastasauria, Shastasauridae, Shonisauridae, Thalattoarchon
Subtaxa: none
Ecology: nektonic carnivore
Distribution: there are no occurrences of Euichthyosauria in the database