There is no usage guidance for this tag … yet!

Usage guidance, also known as a tag wiki excerpt, is a short blurb that describes when and why a tag should be used on this site specifically.

Geobiology is the study of the link between life and its chemical and physical environment.

In pratice, as bacteria do not fossilize directly, extinct bacteria are studied thanks to their chemical impact on their geological environment (concretions, oxidations, etc.); therefore bacteria are typically studied in the context of geobiology and not paleontology.