†unranked clade Grippidia Wiman 1929 (diapsid)
Alternative spelling: Grippidae
Parent taxon: Eoichthyosauria according to R. Motani 1999
See also Cuthbertson et al. 2013, Kuhn 1946 and McGowan and Motani 2003
Sister taxon: Ichthyosauria
Subtaxa: Gulosaurus
Ecology: nektonic carnivore
Distribution: found only at Wapiti Lake, Locality D (Triassic of British Columbia)