tormod you stated a theory as though it was immutable fact.. when there are dozens of accounts that suggest our dinosaur theory is flawed, our cometary impact extinction theory is only gaining steam by way of factual proofs like the Yucatan crater but not everyone believes in it.
your post seems to state those theories as fact and almost dismisses any other possibilities.
have you read (about) the summerian story of creation? it maintains that an unknown planet was the origin of saurians and such (i believe though they have it that life also developed here) our planets collided and a sharing occured.
in case of such a planetary collision i've always wondered if life could survive and when the waters of the two worlds mixed they could have shared life forms (not to mention the oddity of the oversupply of water on earth).
that is to say if to planets thriving with life collide does that life in the least traumatized areas, and the hardiest creatures like bacteria survive the collision and persist on its new home?
unfortunately the story is just that, without that second body and a proper orbit to calculate we cannot say for certain if and when such a collision occured.. there is just far too much evidence for it though for it all to be a coincidence (all the weirdness) like what if pangea wasn't the only land mass? what if the other side of our cleaved world had life on it? and the waters of tiamat (if the planet was bigger, that would account for the excess water on a smaller cleaved world) didn't cover earth as fully as they do now? those underwater pyramids found all over the world may not have been underwater when they were built and used.. but that would mean man was around during that collision event.. unsurprisingly there are myths that maintain humans have always existed on earth in one form or another, one i like is a bbc article stating that humans number in the thousands (as opposed to the billions of today) what if throughout that long time humans (our distant but still intelligent ancestors) interbred with similar species (apes) to form modern homosapiens?
http://www.dinosauria.com/jdp/impact/impact.htm
http://www.clarifyingchristianity.co...eopteryx.shtml < sorry orb..
http://www.ideacenter.org/contentmgr...ls.php/id/1275 < mildly supports orb..
gravity and extinction
http://frederic.malmartel.free.fr/Fi...inosaures3.htm
http://www.dinox.org/english/cmt2000a.htm
well unfortunately unless i tear out and scan the time life article i won't get the article up here, the gist of it was that gravity on earth now means animals like flighted saurians could not fly, they would be too heavy, a bigger less dense planet would easily account for these animals, they would have shrunk into modern bird sizes as gravity increased, similarly as pangea broke apart their habitat would have shrunk causing dwarfism.
there are simply too many stories and not enough hard facts. besides the fact science won't accept extraplanetary life theory without a boiling cauldron with primordial soup welded to the side of it and human footprints around it on nibiru (or one of its moons depending on the variation of the story you want prefer), similarly fossils on the moon (from earthlike creatures) would raise many unwanted questions (besides politics what could have scared away the US gov't for 30+ years?), leaving mars alone for another discussion (which also had liquid water flowing and possibly entrie seas). then there is venus... the toxic clouds mean surface life would have a hard time today (but the tops of the clouds exhibit anomolous readings) and the clouds didn't always clouds venusian skies, earth and venus may have been true twins.. i forget the stats but the venusian atmosphere if condensed covers the billiard ball surface entirely (or almost with liquids, perhaps water) (also noting that the surface is only smooth because of the crushing atmospheric pressure and heat) (i'd bet my kingdom that fossils will be found on venus and mars (and possibly within some of the larger belt objects, assuming of course that the belt is a pulverised planet)..
rats.. my shift starts in minutes.. enough for now.