Wild, domestic and feral? Investigating the status of suids in the Romanian Gumelniţa (5th mil. cal BC) with biogeochemistry and geometric morphometrics

•Isotopic and geometric morphometric analyses reveal Gumelniţa pig husbandry practices.•Pigs were fed from refuse of human activities, suggesting small scale husbandry.•Large suids with domestic molar shape show close proximity to the wild ecosystem.•The large suids with domestic molar shape were feral pigs acquired through hunting.