Biochron
Encyclopedia
A Biochron is the length of time represented by a biostratigraphic zone
. Biochrons are named after characteristic fossil
organisms or taxa
that characterise that interval in time.
Biozone
Biostratigraphic units or Biozones are intervals of geological strata that are defined on the basis of their characteristic fossil taxa....
. Biochrons are named after characteristic fossil
Fossil
Fossils are the preserved remains or traces of animals , plants, and other organisms from the remote past...
organisms or taxa
Taxon
|thumb|270px|[[African elephants]] form a widely-accepted taxon, the [[genus]] LoxodontaA taxon is a group of organisms, which a taxonomist adjudges to be a unit. Usually a taxon is given a name and a rank, although neither is a requirement...
that characterise that interval in time.