#65 is Drifloon, you can see it on fridays in front of the Valley Windworks near floaroma town.
you cant get every Pokemon be4 you get the national dex
yes it can be traded
#80, Sinnoh Dex: Barboach, found while fishing
yes
You can find Kabuto's fossil on the underground after obtaining the National Dex.
No, there is not a Pokedex after the National Pokedex in Pokemon Diamond Version.
you compete the sinnoh dex.
You have to have seen every Pokemon in the regular dex.
Bulbasaur
you cant get every Pokemon be4 you get the national dex
Pokemon #080 (Sinnoh Dex) is Barboach.
it doesnt matter with time. you just have to have seen all the Pokemon in the sinnoh dex
What you have to do is catch all the Pokemon from all the other regions(complete national dex.
bulbasaur
You can get it in the underground after the national dex which you get after the Pokemon league
you have to see all the Pokemon in the pokedeks
I believe it is dialga