 Seminole people today are part of the Seminole Nation of Oklahoma, Seminole Tribe of Florida, and the Miccosukee Tribe of Indians of Florida.At least 12,000 years ago, Native Americans or Paleo-Indians lived in what is today the Southern United States.Paleo-Indians in the Southeast were hunter-gatherers who pursued a wide range of animals, including the megafauna, which became extinct following the end of the Pleistocene age.