Alligator Lizard. But it looks like one, or at least enough for the musical reference. Anyway, we saw this one at one of the overlooks in Arizona's Petrified Forest National Park. This was on the north-of-I-40 side.
The title is from America's song, Ventura Highway. (Which features Joe Osborn on bass). This was one of seven Top 10 songs for America, reaching #8 in late 1972.