Geological stretch (5)
I believe the answer is:
epoch
(Other definitions for epoch that I've seen before include "Historical era" , "extended period" , "significant time" , "Major division or period of history" , "Distinctive period of time" .)
I believe the answer is:
epoch
(Other definitions for epoch that I've seen before include "Historical era" , "extended period" , "significant time" , "Major division or period of history" , "Distinctive period of time" .)