A fossil of a species that links two other species (or genus or families)is, by definition, transitional. That's what evolutionists need to show and what would interest (and maybe sway) me. All morphologically unique fossils are transitional.
There is no special category in evolution called the "transitional species." All species are transitional.
I see your point, but it's still a matter of perspective. If you believe in evolution, then obviously all fossils (and all species) are transitional. However, if you are trying to convince a nonbeliever, then you have to show proof of (or a strong case for) a logical transition from something to something else in order to obtain agreement on a foundational piece in your argument for evolution.
Volley (and have fun!).