Using my mighty cognitive abilities I was able to deduce something today while watching some random bit of reptoid/dinosauroid (in case you forgot who they are here's a link to a previous post) info on youtube.
One of the many origin ideas toted around about the rumored race of reptilian overlords, is that they evolved from dinosaurs. A theory that was given more credence by the fact that a paleontologist actually thought that perhaps a certain species of dinosaur known as Troodon, would have evolved into a humanoid form if it had survived extinction.
Troodon you see was a member of the Maniraptora clade of dinosaurs, which were birdlike and even possesed feathers. Actually I believe birds are classfied as Maniraptora as well, however that may be wrong since I found that bit on wikipedia.
Anyways as I said, my cognitive powers gave me a bit of insight into the whole reptoid dinosaur origin idea; reptoids did not evolve from dinosaurs. Have you ever heard of a reptoid with feathers? I haven't. I've heard of them having wings, but dragon like ones as opposed to feathery bird like ones. Anyways lack of reptoid feathers means they're probably not dinosaurs.
Doing a Google search for reptoids with feathers I only come up with references to Quetzalcoatl who was some sort of Aztec God (As far as mythical Gods go, Odin is so much better. Sorry...a bit of Scandinavian/Germanic ancestry expressing itself...) serpent thing with feathers that apparently created man.
Now being the kind loving guy that I am, I figure I'll give the Earthly origins of reptoids another possibility. Maybe they are a type of evolved Maniraptora that somewhere along their evolutionary life lost their feathers, like humans got rid of their fur except that which is on our heads. Or perhaps they came from some even more primitive reptilian being from before the dinosaurs. After all many creatures before the dinosaurs were mammal like reptiles who were just as amazing as the dinosaurs and even modern day lifeforms.
Eh...who knows...although here's a video to make you all paranoid of the hidden reptilian presence...