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Devonian
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[remove]
267
Mississippian
31
Silurian
30
From 345 to 405 million years ago
26
From 310 to 405 million years ago
12
Carboniferous
8
Ordovician
7
From 345 to 425 million years ago
4
Paleozoic
4
Triassic
3
From 280 to 405 million years ago
2
1910
1
From 190 to 500 million years ago
1
From 230 to 570 million years ago
1
Mesozoic
1
Precambrian
1
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