Here is the template for the Pokémon found on Atlea Island. The template form for Pokémon in the Ko Pokédex can be found here Adding information is no different except that afternoon should be filled with the pokémon's Afternoon Dex Entry.
{{
AtleaPokemon
|number =
|name =
|type1 =
|type2 =
|species =
|abilities =
|height =
|weight =
|male =
|female =
|about =
|sunrise =
|sunset =
|afternoon =
|hLocations =
|hDescription =
|basic =
|basicType1 =
|basicType2 =
|basicToStage1 =
|stage1 =
|stage1Type1 =
|stage1Type2 =
|stage1ToStage2 =
|stage2 =
|stage2Type1 =
|stage2Type2 =
|designer =
|notes =
|prevPokémon =
|nextPokémon =
|gallery =
}}
Here is an example that creates the following page: Clormeleon
{{
AtleaPokemon
|number = #001
|name = Clormeleon
|type1 = Grass
|species = Horned Chameleon
|abilities = [[Abilities|Solar Camouflage]]
|height = 9"
|weight = 4.5 lbs.
|male = 60
|female = 40
|about = <b>Pokemon Afternoon Dex Entry:</b> ""
|sunrise = When it absorbs enough sunlight, it can change its skin color to hide from predators.
|sunset = It absorbs sunlight like most Pokemon consume solid food. It can even absorb enough sunlight to feel "full".
|afternoon = It doesn't eat, but instead performs photosynthesis. By storing light, it can also change its skin color.
|hLocations = [[Melon Field]]
|hDescription = Found sleeping in the Flowerbed.
|basic = Clormeleon
|basicType1 = Grass
|basicToStage1 = LV.16
|stage1 =
|stage1Type1 = Grass
|stage1ToStage2 = LV.32
|stage2 =
|stage2Type1 = Grass
|stage2Type2 =
|designer = Ninjin-Man
|notes = Its name is a combination of "Color" and "Chameleon"
|prevPokémon = Butterbow
|nextPokémon =
|gallery = <gallery type="slideshow" widths="290" position="center">
</gallery>
}}