Geologic time period en
The geological time scale is used by geologists and other scientists to describe the timing and relationships between events that have occurred during the history of the Earth. While "period" is itself a subdivision of this scale, it is used colloquially in the name of this type to include all subdivisions of the scale. [ - ]
What are Properties? Properties
The approximate date (millions of years ago) that this period began.
The approximate date (millions of years ago) that this period ended.
What are Included Types? Included Types
This type doesn't have any included types.