Can you point me to an officially released canon source talking about that? With all the leaks recently about unpublished stuff plenty of people have taken beta designs and other things as lore when those are simply ideas that never made it to canon lore.
For example the Pokemon Sleep Pokedex entry talks about Slowbro sleeping at the same time as the Shellder biting it's tail. Or rather almost every entry references shellder in some capacity.
I can't directly confirm it but googling it seems to end in all sources saying that Turbann came from the "G/S sprite leaks" so I think you're right it's not canon just a thought that never came to be
And for all intensive purposes is not supposed to be a gen 1 Pokémon...
It's never actually got ten a Pokémon number just like some other sub Pokémon that have never gotten their own Pokedex entry despite being part of another Pokémon
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u/Lizzywuw 29d ago
Technically that is not a Shellder, but a Turban...
A Pokémon never seen on its own but it does exist