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From Wikipedia, the free encyclopedia
Paleogene
PreꞒ
Ꞓ
O
S
D
C
P
T
J
K
Pg
N
Devonian–Pennsylvanian
PreꞒ
Ꞓ
O
S
D
C
P
T
J
K
Pg
N
Ordovician–Silurian
PreꞒ
Ꞓ
O
S
D
C
P
T
J
K
Pg
N
