Extinct mammals don't count.
Why? The bible does not specify that
some 'kinds' did not get to ride. They count or the consequences look dire for the literalist.
Notice that I've taken out things that can swim (obviously, if they could swim then they could survive a world wide flood)
I think you should be clear in that you don't simply mean 'the ability to swim'. You removed aquatic mammals such as dolphins, but did not remove dogs, horses, etc correct?
Nice start Taz. If the list can become somewhat complete it should be a blast to watch the backflips ensue about what a
kind actually is.