Yes the fossil is the skull fossil.
You cannot find Cyndaquil in Pokemon Diamond so to get one, you will either have to migrate it or trade it from somebody
You cannot find a Charmander on Pokemon diamond. You have to get it from Pokemon Fire Red or Pokemon Leaf Green. Charmander is a starter Pokemon, so you don't have to catch it.
Evolve Misdreavus with a Dusk Stone. You cannot find Misdreavus in Pokemon Diamond so you need to trade.
you can find him some places if so he will be at the door
Arceus is a event Pokemon so get it from a event thing.
There is only one Master ball in Pokemon diamond so use it wisely. I hope you can find it!
Kyogre is not found in Pokemon Diamond so you will need to migrate it from Ruby, Sapphire or Emerald.
no such thing as a wild arcanine, so you will have to migate.
A:charmander is a starter so u cant find it B:it doesn't exist on Pokemon diamond C:Although you can migrate Pokemon from Emerald/Sapphire/Ruby/Leaf Green/Fire Red/etc.
First, you find a Pokemon you don't have. Then you weaken it with attacks. Then, you spam pokeballs until you catch. Repeat until you have so much Pokemon.
== == you really cant tell because they're different in pearl/diamond so sorry.com?????????????????????????????
Yes, although it is rare and so difficult to find.