Overview

age


Related Overviews

 

'age' can also refer to...

ageism

age

age

age

Age

Aging

age

age

Aging Retirement, Health, and the Generational Bargain

Aging

ageism

age

ageism

Age

aged

-age

Ageism

age

Age

Age

 

More Like This

Show all results sharing these subjects:

  • Ecology and Conservation
  • Earth Sciences and Geography

GO

Show Summary Details

Quick Reference

1 The interval of geologic time equivalent to the chronostratigraphic unit ‘stage’. Ages are subdivisions of epochs and may themselves be subdivided into chrons. An age takes its name from the corresponding stage, so like the stage name it carries the suffix ‘-ian’ (or sometimes ‘-an’); the term ‘age’ is often capitalized when used in this formal sense, e.g. ‘of Oxfordian Age’.

2 An informal term to denote a time span marked by some specific feature (e.g. ‘Villefranchian mammalian age’).

Subjects: Ecology and Conservation — Earth Sciences and Geography.


Reference entries

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content.