>>528064421
>We still need a ultimate/mega stage marine arthropod for Anomalocarimon and Gusokumon to evolve into

Tou can't see it in official art but the closest we have is Vulcanusmon who had lobster armour. Like the loin is a lobster tail. He has a octopus helmet too obviously though which probably means Octomon is in the silhouettes people were talking about last thread too.