Temporal Coverage
- 1913.5
- From 65 to 140 million years ago5
- Holocene5
- Pennsylvanian5
- Primitive and early church, ca. 30-6005
- To 1800.5
- 1754 - 17634
- 476-14924
- American occupation, 1847-18484
- Cenozoic.4
- From 2 to 65 million years ago4
- From 230 to 570 million years ago4
- Mississippian4
- To 14534
- To 704
- 1789-18153
- 1914.3
- 1945-3
- 1970-3
- 20th century.3
