Usually, they represent periods between extinction events, where a particular type of lifeform was dominant.
Between what two time periods was farming discovered
there are 5 minutes in between periods.
problem of comparison of national income between time periods
The homophone between "time periods" and "to stun" is "thyme petals."
The time between two events is the interval between them.
Between what two time periods was farming discovered
A between-time is a period of time between two events.
"while" can be considered a time connective when used to indicate a duration of time or a simultaneous action. It is used to show the relationship between two events happening at the same time or overlapping time periods in a sentence.
The time between glacial periods is called an interglacial period. It is characterized by warmer temperatures and the retreat of glaciers.
Elapsed time refers to the time that passes between two events.
It usually refers to the length of time between the the two events occurring.