The last epoch in the Tertiary Period is the Pliocene, which lasted from about 5.3 million to 2.6 million years ago. It was a time of cooling global temperatures, the continued evolution of mammals, and the emergence of early human ancestors.
Tertiary - Third So the tertiary comes third.
tertiary
Tertiary activities
Tertiary
tertiary
primary
Tertiary
there are 6 tertiary colors
Examples of tertiary activities?
nope
Tertiary is not declining, it is rising.