Sorry, just spotted there have been multiple issues raised for this in the past.

However, a mod has mentioned https://cal.syoboi.jp/ as a source. This source also lists "Pokémon Ranger! Wave-Guided Riolu!! / Pokémon Ranger and the Kidnapped Riolu!" as having originally aired as a '1-hour special' but these two episodes get listed under S11 Battle Dimension. See: https://cal.syoboi.jp/tid/1032/time

First, http://cal.syoboi.jp/ is only used as a second source. The main source being the TV Tokyo page where this episode is listed unnumbered.

For this episode, you can see that no episode number are mentionned (neither in the episode number column, nor in the description part). This is a special episode in our list because this is an unnumbered episode.

For the episodes that you mention, you can see that the 2 episode numbers are mention on the description part meaning that the 2 episodes are regularly numbered episodes and that they are simply broadcasted back to back in a one hour slot.

Hey, thanks for responding so quickly.

It looks to me as though none of the episodes on the TV Tokyo website are numbered. The link just seems to indicate that this DOES belong within the Advanced Generation series, between "Battle Tower! Telepathic Battle!!"/"Second Time's the Charm!" and "Usokey! Golden Legend!?"/"All That Glitters Is Not Golden!".

Also, here is the official Pokemon Japan website that lists this as two episodes numbered #170 and #171 https://www.pokemon.co.jp/tv_movie/anime/advance.html

@Van_Angel said:

Also, here is the official Pokemon Japan website that lists this as two episodes numbered #170 and #171 https://www.pokemon.co.jp/tv_movie/anime/advance.html

For us, official data are broadcast data, not production data.

So for broadcast data, you're referring to http://cal.syoboi.jp/ as the source? How are they affiliated with TV Tokyo or Pokemon?

The main source is broadcaster, TV Tokyo's website.

• This is TV Tokyo's section for the 'Advanced Generation' series: https://www.tv-tokyo.co.jp/anime/pokemon_ag/main.html
• This is TV Tokyo's list of episodes broadcast within the 'Advanced Generation' series, listed by date: https://www.tv-tokyo.co.jp/anime/pokemon_ag/3_back_num/main.html

Broadcast on April 13th is "Pokémon Ranger! Deoxys Crisis!!". It falls between an episode broadcast on March 30th, and one on April 20th. Clearly, "Pokémon Ranger! Deoxys Crisis!!" is part of the 'Advanced Generation' series, occuring between "Battle Tower! Telepathic Battle!!" and "Usopp! The Golden Legend!?".

• "But it's listed without an episode number"? Yeah, so is every episode on the TV Tokyo website's Advanced Generation section.
• "But it's listed as a single episode/entry"? Yeah, so is "Pokémon Ranger! The Wave-Guiding Riolu!!" on the TV Tokyo website's Diamond and Pearl section.

So TV Tokyo is the primary source, and I think they provide enough information to identify "Pokémon Ranger! Deoxys Crisis!!" as part of the 'Advanced Generation' series as well as its order within that series. However, if needing an additional source, we should refer to the next best official source: Pokémon Japan website's section for the 'Advanced Generation' series.

• This is the Pokémon Japan website's list of episodes for the 'Advanced Generation' series, listed in numeric order: https://www.pokemon.co.jp/tv_movie/anime/advance.html

"Pokémon Ranger! Deoxys Crisis!!" is listed as two parts, with episode numbers #171 and #172. There is no mention that this is a list of episodes in production order. I can't see any use of the word 'production' at all. But I do see 'broadcast'. If broadcast data is the official data, Pokemon Japan clearly lists "Pokémon Ranger! Deoxys Crisis!!" as part of the 'Advanced Generation' series with broadcast numbers #171 and #172.

Shoboi Karendā (cal.syoboi.jp) is made up of user-contributed data, and by their own admission may feature incorrect data. It cannot be trusted over two official sources, TV Tokyo and Pokémon Japan.