Racket is one other good example but he was responding to the "all other lisps" claim. Racket pretty unusual in many regards, so I think the Dwightian "False" was unnecessary here. Or anywhere, really.
Racket is a Scheme:Racket is still a dialect of Lisp and a descendant of Scheme. The tools developed by PLT will continue to support R5RS, R6RS, the old mzscheme environment, Typed Scheme, and more. At the same time, instead of having to say “PLT's main variant of Scheme,” programmers can now simply say “Racket” to refer to the specific descendant of Scheme that powers PLT's languages and libraries.
http://racket-lang.org/new-name.html