Dr Lava - The Lombre family draws inspiration from Kappa. To see more Lost Pokemon history, check out my YouTube channel, also called Dr Lava's Lost Pokemon. The link is in my
Golduck Pokémon: How to Catch, Moves, Pokedex & More
It looks like the golduck on kammados kimono has exaggerated features to make it look scary. It kinda looks like a kappa(Japanese folklore river monster) the way it is designed. : r/PokeLeaks
Golduck | Monster Wiki | Fandom
LP Pokemon (3rd 1999-2000) GOLDUCK Card FOSSIL Set 35/62 Australia Red Logo Pack | eBay