How much longer would dinosaurs rule with no K-Pg event?

[Infinity Blade]

I was way in over my head when I asked this question. As others have rightly pointed out, it's utterly impossible to tell.

Now, if you were to ask me whether or not dinosaurs would still constitute the predominant proportion of the planet's terrestrial megafauna up to the present day, I would say it's within the realms of possibility.

[dinosauria101]

I suppose you do have a point there, especially it being possible.

[sam1]

While I do agree that it's impossible to tell for sure, I think some likelihood of it happening can be reasonably determined.

Nothing close to the mass extinction scale event has happened ever since (although, we're probably going through the one right now), so I don't see what could cause dinosaurs to lose their dominance. Looking at their variety and adaptation abilities, and especially at their contemporary avian descendants, the potential is obvious.
The largest sauropods and carnivores likely wouldn't have survived but I'd say we'd probably have far greater variety of dinosaur species occupying every major niche now.