²Though Hutchison (1992) carefully included the faunal list of Emry (1973), which had been neglected by other authors (Estes 1983; Sullivan and Holman 1996), he mistakenly stated (p. 456) that Emry listed "cf. Tinosaurus" from the Flagstaff Rim area of Wyoming; the taxon in question was actually cf. Thinosaurus, considered synonymous with Saniwa* (Estes 1983).