Ash and his friends also meet up with Roark again, and find out that he is Byron's son.
The image found nearby Byron's giant Anorith Fossil is similar to the feature in the Pokédex given in Sinnoh.
This marks the second time two official Gym Leaders battle each other. The first time was Brock against his mother when she temporarily took over the Pewter Gym in Takeshi! Save Nibi Gym! (2002) on Pokémon Chronicles (2002). That occasion was also a battle between a parent and a child.
Ash and his friends meet Byron, the Canalave City Gym Leader.