Stratigraphic Table

Eon

Era

Period

Epoch

Age,
million years

The main reef-builders

F
a
n
e
r
o
z
o
i
c

C
e
n
o
z
o
i
c

Quaternary

Holocene

0,01

Scleractinia - the same species as today.

Pleistocene

1,8

Tertiary

Pliocene

22,5

Scleractinia - the same species as today.

Miocene

Oligocene

Scleractinia (corals)

Eocene

Paleocene

M
e
s
o
z
o
i
c

Cretaceous

140

Scleractinia corals, Rhodophyta (red seaweeds), Bryzoa and Hydrozoa.

Jurassic

195

Scleractinia corals, Rhodophyta (red seaweeds), Bryzoa and Hydrozoa.

Triassic

230

Scleractinia corals, Rhodophyta (red seaweeds), Bryzoa and Hydrozoa.

P
a
l
e
o
z
o
i
c

Permian

280

Rugosa, Tabulata, Algae and Bryzoa. Extinction of Rugosa and Tabulata

Carboniferous

345

Rugosa, Tabulata, Algae and Bryzoa.

Devonian

395

Rugosa, Tabulata, Hydrozoa and Bryzoa.

Silurian

435

Rugosa, Tabulata, Hydrozoa and Bryzoa.

Ordovician

500

Rugosa, Tabulata, Hydrozoa and Bryzoa.

Cambrian

570

Archaecyatha (only Cambrian) and Algae

P
r
e
c
a
m
b
r
i
a
n

(A
r
c
h
a
e
a
n)

Pro
tero
zoic

2600

Ar
cha
ic

3000