teilzone
Quick Summary
The term "teilzone" refers to a specific stratigraphic unit within a broader "biozone." A biozone is a layer of rock (strata) that contains a particular fossil, indicating it was formed during the existence of that fossilized organism. The teilzone is the local stratigraphic range of that specific fossil within a biozone. Essentially, a teilzone is a more localized version of a biozone, defined by the presence of a particular fossil. The geological time periods corresponding to biozones and teilzones are called biochrons and teilchrons, respectively. The term "zone" is also used synonymously with biozone in stratigraphy.1
Ask Britannica AI about this topic
Britannica doesn't have a full article on this topic, so we've curated a list of our relevant coverage.