You know, I can forgive your plot-hole covered fan theory, but this is where I draw the line. I work closely with fossils and try to remain as up-to-date with the world of paleontology as I can. It is a passion of mine and my job requires it. The largest known mammals of the entire mesozoic didn't even exceed the size of a possum; they didn't start thriving until after the end of the Cretaceous when all large fauna at the time (non-avian dinosaurs and other large archosaurs to start off with) died off. And its not like primates just magically popped up out of nowhere after said extinction event either. No credible scientific-based entity has made the claims you just made. Just stop before you make this worse for yourself. Please.