This chart shows consistent Early, Middle and Late Epoch
subdivisions and also inserts the informal, but widely used
Tertiary. For details see "A Geologic Time Scale 2004" by F. M.
Gradstein, J. G. Ogg, A. G. Smith, et al. (2004) with Cambridge
University Press, and the official website of the International
Commission on Stratigraphy (ICS) under www.stratigraphy.org .
nodata
mixedpolarity
mixedpolarity
mixedpolarity
C30
Cret
aceo
us N
orm
al-P
olar
ity S
uper
-Chr
on("C
reta
ceou
s Q
uiet
Zon
e")
M"-1r"(ISEA)
M0rM1M3M5/M10M11
M16M17
C31C32
C33
C34
M12/M15
M18/M21M22M23/M25
S-Sw
itzer
-la
nd,
N-Ita
ly
Fran
ce,
Spain
,Sw
itzer
land
westernAustria
M26/M32M33/M37
E24/E18
E17E16E15E14E13E12/E10E9E8E7
E6/E2
Albania,Greece,Poland
EnglandFrance
SouthernSpain
SouthernSwitzer-
land
Copyright 2007 International Commission on Stratigraphy
This chart is copyright protected; no reproduction of any parts
maytake place without written permission by the ICS.This chart was
drafted by Gabi Ogg.
Hirnantian
Mio
cene
Plioc
ene
E
E
M
L
L
Aquitanian
Burdigalian
Langhian
Serravallian
Tortonian
Messinian
Zanclean
PiacenzianGelasian
Early
Eoc
ene
Pale
ocen
eO
ligoc
ene
Danian
Selandian
Thanetian
Ypresian
Lutetian
Bartonian
Priabonian
RupelianE
E
E
M
M
L
L
L
Chattian
AGE(Ma)
5
0
10
15
20
25
30
35
40
45
50
55
60
65
Pal
eoge
ne
23.03
20.43
15.97
13.65
5.33
3.60
7.25
11.61
1.81
2.59
65.5
58.7
55.8
37.2
28.4
61.7
48.6
40.4
33.9
C1
C3
C4
C5
C6
C2
C7
C8
C9
C10
C11
C12
C17
C18
C20
C22
C23
C25
C26
C27
C28
C29
C19
C21
C24
C13/C16
65.5
ICS
International Commissionon Stratigraphy
Stage 10
501.0503.0
534.6
517.0
492.0496.0
506.5510.0
521.0
411.2416.0418.7
422.9
428.2
318.1
345.3
326.4
374.5
385.3
391.8
397.5
407.0
443.7445.6
260.4
265.8
275.6
284.4
294.6
303.9306.5
311.7
421.3
426.2
436.0439.0
455.8
460.9
468.1471.8
478.6
488.3
542.0
268.0270.6
299.0
251.0253.8
359.2
"Say
an (
Rn)"
"Don
etzi
an"
mix
ed p
olar
ityK
iam
anre
vers
ed p
olar
ityIll
awar
am
ixed
pola
rity
Terti
ary*
Quaternary*: Formal chronostratigraphic unit recommended by
joint ICS-INQUA taskforce (2005) and ICS.Tertiary*: Informal
chronostratigraphic unit sensu Aubry et al. (2005, Episodes
28/2).
MiddlePleisto-cene
Neo
gene
Sealevel
Sealevel
Sealevel
E
M
L
E
M
LC
ambr
ian
Silu
rian
E
E
M
L
M
L
Car
boni
fero
usP
erm
ian
Cre
tace
ous
Dapingian
A Proposal for Simplifying theInternational Geological Time
Scale Chart
