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Temporal Coverage
- Paleozoic6
- Ordovician3
- Mesozoic2
- Silurian2
- 1965.1
- Cambrian1
- Cretaceous.1
- Devonian1
- From 310 to 345 million years ago1
- From 405 to 500 million years ago1
- From 425 to 500 million years ago1
- From 425 to 570 million years ago1
- From 65 to 570 million years ago1
- Mississippian1
- Permian1
- Pleistocene1
- Pre-Quaternary1
- Precambrian1
