autochthonous
1. [ adjective ] originating where it is found
Synonyms: autochthonic endemic indigenous autochthonal
Examples:

"the autochthonal fauna of Australia includes the kangaroo" "autochthonous rocks and people and folktales" "endemic folkways" "the Ainu are indigenous to the northernmost islands of Japan"

Related terms: native
2. [ adjective ] of rocks, deposits, etc.; found where they and their constituents were formed
Related terms: allochthonous
Similar spelling:   autochthony
  autochthonic
  autochthonal