Many of the fossils I refer to were aquatic species which would have been totally unaffected by a flood. According to carbon dating the fossils cover a period of billions of years, are found in many different layers of mud, and show a slow tiered progression of complexity in species. The species found in the fossil record are distinct species from those alive today. A certain funny looking horse is not what we are dealing with.
There are no fossils of todays current species in their identical forms. There are some fossils which resemble todays species, but there are still major differences between them (like with the horses). The vast majority of todays species are not found fossilized in a form that might resemble their current one. Had species not changed form, we should find some fossils of all species mostly unchanged from their current forms.
Even if we imagine the flood somehow extinguished the aquatic species as well as the land species, such an event could only result in minor evolution.
The animals Noah took on his ark were (allegedly) the same species as those facing extinction. That same species which went in, more or less, would be the one which came out. This is true by your own premise - that major evolution is impossible.
Such a minor evolution could never approach explaining the differences between todays species and those species found in the fossil record.
There actually is evidence that a major flood happened around Noahs time, but not that it covered the entire world (I doubt there's even enough water on earth for that to happen):
http://en.wikipedia.org/wiki/Black_S...uge_hypothesis

