to get shieldon you need to under ground and find the armor fossil then put it in your bag next go up to oreburgh city and talk too the guy in the museum, but you need five Pokemon in your party then tell him about the armor fossil and go out of the museum then go back in then talk to him again he will give you shieldon lv.20,you can do this with any other fossils you find.
sources:
http://www.serebii.net/pokedex-dp/410.shtml
its shieldon not sheldon. you get it by going underground and searching for fossils.
how to get a togepi in Pokemon platinum
There is no grunt that you can give a Pokemon to in Pokemon platinum.
That pokemon is Azumarill in pokemon platinum in the national pokedex
No, you cannot get Jirachi in Pokemon platinum.
Sheldon evolves in lvl 30 in a Bastiodon.
There is Anorith,Aerodactal,Kabuto,Omanite,Lileep, and if your trainer code is odd sheldon and if its even cranidos
its shieldon not sheldon. you get it by going underground and searching for fossils.
There is no rental Pokemon in in Pokemon platinum
You cant get Pokemon from Pokemon ranger to platinum!
how to get a togepi in Pokemon platinum
There is no grunt that you can give a Pokemon to in Pokemon platinum.
buy the Pokemon platinum book
In the National Pokedex in Pokemon Platinum Mawile is Pokemon 303.
The 151st Pokemon is Mew and is unobtainable in Pokemon Platinum.
yes there is a new Pokemon in Pokemon platinum. its name is Arcues.
That pokemon is Azumarill in pokemon platinum in the national pokedex