Category:Geological periods

C

• ► Cambrian‎ (5 C, 6 P)
• ► Carboniferous‎ (2 C, 4 P)
• ► Cretaceous‎ (2 C, 4 P)
• ► Cryogenian‎ (8 P)

D

• ► Devonian‎ (3 C, 3 P)

E

• ► Ediacaran‎ (2 C, 11 P)

J

• ► Jurassic‎ (2 C, 3 P)

N

• ► Neogene‎ (1 C, 4 P)

O

• ► Ordovician‎ (5 C, 3 P)

P

• ► Paleogene‎ (3 C, 3 P)
• ► Permian‎ (5 C, 11 P)

Q

• ► Quaternary‎ (3 C, 8 P)

S

• ► Silurian‎ (3 C, 3 P)

T

• ► Triassic‎ (2 C, 11 P)

• Geological period (earth)

.

• System (stratigraphy) (earth)

C

• Calymmian (earth)
• Cambrian (earth)
• Carboniferous (earth)
• Cretaceous (earth)
• Cryogenian (earth)

D

• Devonian (earth)

E

• Ectasian (earth)
• Ediacaran (earth)

J

• Jurassic (earth)

N

• Neogene (earth)

O

• Ordovician (earth)
• Orosirian (earth)

P

• Paleogene (earth)
• Permian (earth)

Q

• Quaternary (earth)

R

• Rhyacian (earth)

S

• Siderian (earth)
• Silurian (earth)
• Statherian (earth)
• Stenian (earth)

T

• Tappan Spring (earth)
• Tonian (earth)
• Triassic (earth)