Dialga Palkia Fusion

In the Pokemon Adventures manga, the statue in Eterna City is neither Dialga or Palkia but a combination of the two statues. This is a reflection of the statue's appearance in Pokémon Diamond and Pearl and Pokémon Platinum being ambiguously shaped, in order to represent a different member of the duo in each game with a different tile palette. In Pokémon Brilliant Diamond and Shining Pearl, the statue was redesigned to be an explicit fusion between the two, similarly to how it appears in the manga.