Үлгі:Кембрий graphical timeline

Key events in the Cambrian

-545 —

–

-540 —

–

-535 —

–

-530 —

–

-525 —

–

-520 —

–

-515 —

–

-510 —

–

-505 —

–

-500 —

–

-495 —

–

-490 —

–

Ediacaran

Nemakit-
Daldynian

Middle
Cambrian

Ordovician

←

Orsten Fauna

←

←

Sirius Passet Fauna^[1]

←

Chengjiang Fauna

←

First Trilobites

←

First Arthropod trace fossils

C
a
m
b
r
i
a
n

←

and Echinoderms

(last era of the Precambrian)
Palæozoic

(first era of the Phanerozoic)

An approximate timescale of key Cambrian events.
The Cambrian explosion took place during the lower Cambrian, but its duration is poorly defined.
Axis scale: millions of years ago.

↑ Budd, G.E.; Peel, J.S. (1998). "A new xenusiid lobopod from the Early Cambrian Sirius Passet fauna of North Greenland". Palaeontology 41: 1201-1213. http://palaeontology.palass-pubs.org/pdf/Vol%2041/Pages%201201-1213.pdf.

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