ECU Libraries Catalog
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Era
- Cretaceous267
- 20th century213
- Tertiary186
- Quaternary172
- 19th century157
- Paleozoic148
- Precambrian141
- Devonian132
- Cenozoic121
- Pleistocene112
- Eocene104
- Ordovician101
- Mesozoic100
- Miocene97
- Permian97
- Pennsylvanian96
- Mississippian88
- 18th century85
- Jurassic72
- Triassic70