An eonothem is a chronostratigraphic unit of geologic time more commonly referred to as an "eon" or "geologic eon", its geochronologic name equivalent. Please refer to Geologic eon or Geologic time scale for more information.
|Rank of Time Unit||Chronostratigraphic Name||Geochronologic Name|
|1 - Longest||Eonothem||Eon|
|5 - Shortest||Stage||Age|