I think I may have stumbled upon a Gastodon convention. : r/MonsterHunter
Gastodon | Monster Hunter World Wiki
Monster Vintage Metal Tin Sign Barroth Gajalaka Art Painting Fatalis Gastodon Retro Poster For Bar Club Pub Home Room Wall Decor - Plaques & Signs - AliExpress
Monster Hunter Fifth Generation Monsters World / Characters - TV Tropes