Buried in place, especially of a fossil preserved in its life position without disturbance or disarticulation
Death and burial may be simultaneous, resulting in a preserved snapshot of an autochthonous assemblage that may be compared directly with present day ecosystems.
material that is internally manufactured within the aquatic ecosystem (Cole, 1994) Autochthonous, or oligotrophic lakes are clear with low colour Autochthonous lakes can be assigned a trophic status based on total phosphorus loading (Clark, 2002a)
Microorganisms and/or substances indigenous to a given ecosystem; the true inhabitants of an ecosystem; referring to the common microbiota of the body of soil microorganisms that tend to remain constant despite fluctuations in the quantity of fermentable organic matter
originating where it is found; "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"
\aw-TOCK-thuh-nuhs\, adjective: 1 Aboriginal; indigenous; native 2 Formed or originating in the place where found