Jiangshanian

Key events in the Cambrian

view • discuss • 

-550 —

–

-540 —

–

-530 —

–

-520 —

–

-510 —

–

-500 —

–

-490 —

–

N
e
o
p
r
o
t
e
r
o
z
o
i
c

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

S
e
r
i
e
s

3

F
u
r
o
n
g
i
a
n

Fortunian

"Stage 2"

"Stage 3"

"Stage 4"

"Stage 5"

Drumian

Guzhangian

Paibian

Jiangshanian

"Stage 10"

 

 

 

 

* * * * * * * * * * * *
* * * * * * * * * * * * * * * * * * * * * * * * *

Baykonur
glaciation

Baykonur
glaciation

* * * * * * * * * * * *
* * * * * * * * * * * * * * * * * * * * * * * * *

←

Orsten Fauna

←

Burgess Shale

←

Kaili biota

←

Archaeocyatha extinction

←

Emu Bay Shale

←

Sirius Passet biota

←

Chengjiang biota

←

First Trilobites

←

SSF diversification, first brachiopods & archaeocyatha

←

First halkieriids, mollusсs, hyoliths SSF

←

Treptichnus pedum trace
Large negative peak δ 13C_carb excursion

←

First Cloudina & Namacalathus mineral tubular fossils

Stratigraphic scale of the ICS subdivisions and Precambrian/Cambrian boundary.

The Jiangshanian is the middle stage of the Furongian series. It follows the Paibian stage and is succeeded by the still unnamed Stage 10 of the Cambrian. The base is defined as the first appearance of the trilobite Agnostotes orientalis which is estimated to be ~494 million years ago. The Jiangshanian lasted until approximately ~489.5 million years ago.

The Cambrian stage was named after Jiangshan, a town in the Zhejiang province of China.

The GSSP of the Jiangshanian is the "Duibian B Section" (), west of the village of Duibian, and 10 km north of Jiangshan. The outcrop belongs to the Huayansi Formation.