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Cambrian graphical timeline

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N
♇

P
a
l
e
o
z
o
i
c

Ediacaran

C
a
m
b
r
i
a
n

Ordovician

T
e
r
r
e
n
e
u
v
i
a
n

S
e
r
i
e
s

2

M
i
a
o
l
i
n
g.

"Stage 2"

"Stage 3"

"Stage 4"

"Stage 10"

←

Orsten Fauna

←

←

←

Archaeocyatha extinction

←

←

Sirius Passet biota

←

Chengjiang biota

←

First Trilobites

←

SSF diversification, first brachiopods & archaeocyatha

←

First halkieriids, mollusсs, hyoliths SSF

←

Baykonurian glaciation

←

Dresbachian extinction

Major Glacial period

Subdivision of the Cambrian according to the ICS, as of 2023.^[1]
Vertical axis scale: Millions of years ago

References

^ "International Chronostratigraphic Chart" (PDF). International Commission on Stratigraphy. September 2023. Retrieved November 10, 2024.