Era
Tertiary
9
Carboniferous
4
Cretaceous
4
From 2 to 65 million years ago
4
From 280 to 345 million years ago
3
From 65 to 140 million years ago
3
Jurassic
3
From 140 to 190 million years ago
2
Mesozoic
2
Cenozoic
1
Eocene
1
From 190 to 280 million years ago
1
From 2 to 10 million years ago
1
From 230 to 570 million years ago
1
From 65 to 230 million years ago
1
Paleozoic
1
Permian
1
Pliocene
1
Quaternary
1
Triassic
1