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Temporal Coverage
- Quaternary10
- From 65 to 140 million years ago5
- Cretaceous4
- From 2 million years ago4
- Jurassic3
- Tertiary3
- From 230 to 570 million years ago2
- Mississippian2
- Paleozoic2
- 1913.1
- 19421
- 1942.1
- Cenozoic1
- Cretaceous.1
- Devonian1
- From 10 thousand to 2 million years ago1
- From 2 to 65 million years ago1
- From 280 to 310 million years ago1
- From 65 million years ago1
- Pennsylvanian1
