This does lead to interesting speculation...
Fisrt off, what sort of tools would our intellectual dinosaurs use? IIRC, many of them had forelimbs that were useless (ex. T-rex). Would they use their mouths? But how could they properly grip the tools?


Another thing: COMMUNICATION. How would dinosaurs communicate? Their mouths don't seem developed enough to form actual speech (I'm not an expert on such things, I'm merely looking at it from a layperson's view) Unless they used honkings or hoots. But that makes no sense, because there are only so many types of honks or hoots one can make.
And what about written language? Certainly any "intelligent"(intelligent meaning capable of forming a society)dinosaurs would come up with some form of written language - even pictographs!

__________________
here we go, the world is spinning
when it stops, it's just beginning

sun comes up, we laugh and we cry
sun goes down, and then we all die

Touched by his noodly appendage