3rd period ...! easy question
The Cretaceous Period was the longest period of time.
the paleocene epoch is in the paleogene time period.
Without qualification a time period is any amount of time, to define the period, additional information is required, such as 'a time period of 20 years'
what time oxygen time period was 1774
the classical time period
He was from the time period of 2011-2029
The time period is contemporary.
envelope time period brochure area of the state
That time period varies by state.That time period varies by state.That time period varies by state.That time period varies by state.
period ( of time ) = periode long period of time= epoch menstrual period = la course punctuation = point !
musical time period : modern
The time period was from 1775 to 1783