AGE

DESCRIPTION: Age abbreviations.

Valid entries:

CZ

Cenozoic

 

Q

Quaternary

 

Q1

Holocene

Oxygen Isotope Stage 1

Q2

 

Oxygen Isotope Stage 2

Q3

 

Oxygen Isotope Stage 3

Q4

 

Oxygen Isotope Stage 4

Q5

 

Oxygen Isotope Stage 5

Q6

 

Oxygen Isotope Stage 6

Q7

 

Oxygen Isotope Stage 7

Q8

 

Oxygen Isotope Stage 8

Q9

 

Oxygen Isotope Stage 9

Q10

 

Oxygen Isotope Stage 10

Q11

 

Oxygen Isotope Stage 11

Q12

 

Oxygen Isotope Stage 12

Q13

 

Oxygen Isotope Stage 13

Q14

 

Oxygen Isotope Stage 14

lQ

Late Pleistocene (Q1-Q4)

 

mQ

Middle Pleistocene (Q5-Q13)

 

eQ

Early Pleistocene (Q14+)

 

TT

Tertiary

 

Pl

Pliocene

 

lPl

Late Pliocene

 

ePl

Early Pliocene

 

Mi

Miocene

 

lMi

Late Miocene

 

mMi

Middle Miocene

 

eMi

Early Miocene

 

Ol

Oligocene

 

lOl

Late Oligocene

 

eOl

Early Oligocene

 

E

Eocene

 

lE

Late Eocene

 

mE

Middle Eocene

 

eE

Early Eocene

 

Pa

Paleocene

 

lPa

Late Paleocene

 

ePa

Early Paleocene

 

MZ

Mesozoic

 

K

Cretaceous

 

lK

Late Cretaceous

 

eK

Early Cretaceous

 

J

Jurassic

 

lJ

Late Jurassic

 

mJ

Middle Jurassic

 

eJ

Early Jurassic

 

Tr

Triassic

 

lTr

Late Triassic

 

mTr

Middle Triassic

 

eTr

Early Triassic

 

PZ

Paleozoic

 

Y

Permian

 

lY

Late Permian

 

mY

Middle Permian

 

eY

Early Permian

 

Ca

Carboniferous

 

lCa

Late Carboniferous

 

mCa

Middle Carboniferous

 

eCa

Early Carboniferous

 

D

Devonian

 

lD

Late Devonian

 

mD

Middle Devonian

 

eD

Early Devonian

 

S

Silurian

 

lS

Late Silurian

 

mS

Middle Silurian

 

eS

Early Silurian

 

Or

Ordovician

 

lOr

Late Ordovician

 

eOr

Early Ordovician

 

Cm

Cambrian

 

lCm

Late Cambrian

 

mCm

Middle Cambrian

 

eCm

Early Cambrian

 

Z

Proterozoic

 

lZ

Late Proterozoic

 

mZ

Middle Proterozoic

 

eZ

Early Proterozoic

 

Addition of ? (e.g. ?mCm) indicates uncertainty of value