assemblage zone (coenozone, faunizone) Biostratigraphic unit or level of strata characterized by a particular assemblage of animals or plants. An assemblage zone is named after one or more of the distinguishing fossils present, which are chosen without regard for their total time ranges, so that the assemblage is of purely environmental significance. Compare CONCURRENT RANGE ZONE.

assemblage zone(coenozone, faunizone) A stratigraphic unit or level of strata that is characterized by an assemblage of animals and/or plants. An assemblage zone is named after one or more of the distinguishing fossils present, which are chosen without regard for their total time ranges, so that the assemblage is of purely environmental significance. Compare concurrent range zone.

assemblage zone (coenozone, faunizone) A stratigraphic unit or level of rock strata that is characterized by an assemblage of fossil plants and/or animals.

assemblage zone (coenozone, faunizone) A stratigraphic unit or level of strata that is characterized by an assemblage of animals and/or plants.