Originally posted by DragonFire1024
There is always something. Lets say something as intelligent as us, if not more so, existed before or at the beginning of the dinosaurs and during. If they were wiped out as a result of the asteroid, we can assume most of them went with the dinosaurs. Point being, anything alive from that era when it hit, would have been ultimately preserved in that layer. The proof is the fossil record we do have from that period. So it would also be likely that we would find (or have already and assuming my last statement, a cover-up) fossils of these bipeds. As to their technology, you assume they had the means to create "plastic" and such. I don't think that is true. If they existed they would have been at a stage as what we would call "cave men". A species of biped to have created any such material would need to have existed a lot earlier than the dinosaurs and their predecessors for there to be absolutely no record of their existence whatsoever. It would also mean that this planet hosted life much earlier than we are lead to believe.
I seriously doubt there was a cover-up involved at all. Scientists love to dig as far back as possible into human evolution and what with the advances in dating techniques as well as the vast array of fossil records, they are far from shy.
Everything in this thread is speculation, there is no proof of any lizard men with technologies so complex as to be able to fly away from earth. If this was so then in those same fossil records we would be finding Plastics, metals and various other components which you would expect to find in such devices....but there are none
My problem with topics like this is that it tries to disprove evolution in the same ways that religion has over the years, those who don't want to hear it, won't and will continue to say "yea watever, I have this evidence" which vast majority of the time, if not all the time has no baring or draws no direct leads other than what the imagination can link with it's origin.
From bacteria to what we have today.....it doesn't need to be more complicated than it already is and any Idea's of alien interference are nothing more than speculation and supposition which some take beyond the points of the believable.