It does, in enough places to show that the entire planet was involved. Vast areas in the CONUS contain such places, called megasequences. In other areas, the runoff as the flood waters receded caused erosion that carried much of it to lower elevations, including into the oceans.
If you desire to know more, contact ICR in Dallas, TX. They have numerous books on the subject, containing copious photo and other examples which demonstrate that the global deluge is the only honest, logical answer as to why present conditions exist. Many aftermaths of Mount St. Helens show that things once considered to require millions of hears to take place, actually can occur within much less time; some having already happened since 1980.
There have been many flooding event over millions of years. These fossils are dated to 10 million years ago.
I wouldn’t be taken in by the ICR hucksters, were I you.