||Australia first joined to Antarctica. At this time
Porongurup Ranges and East Mount Barren were
formed, probably as a shock-absorbing mechanism of the weaker parts of
the crust as the Australia slammed into Antarctica at the start of the
||The time that the controversial glacial phase called by some
Earth" began that some believe was so widespread and intense
that it may have come close to extermination life.
||Pannotia, a supercontinent that is believed to have formed
about 300 Ma and lasted for about 30 million years.
Cambrian. Australia was at the northern end of Gondwana,
eastern coast was facing north.
||Tremadocian. Australia is still at the northern end of
Gondwana, but has moved slightly south, its western coast now
touches the Equator.
Ordovician. Australia has moved a bit further south.
The west coast is now south of the Equator.
Silurian. About 1/3 of the continent is south of the
Equator, which is on the north-south axis of the continent. The
west coast still facing south.
Devonian. Australia is now south of the
Equator in the orientation of the present with the tip of Cape
York touching the Equator.
Devonian. Australia is now half way between the Equator
and 45oS latitude. It has a similar orientation to the present.
Carboniferous. Australia straddles the 45oS latitude,
the present north coast facing north.
Carboniferous. Australia is now south of the 45o S
||Sakmarian-Artinskian. Australia is still south of 45oS close
to the South Pole, on the eastern end of Gondwana.
||Kazanian. Australia is still near the South Pole. The
present north coast is tending to face north east.
Triassic. Partly above the 45oS latitude, on the
eastern end of Gondwana.
Triassic. The 45oS latitude passes through about the
middle of the continent along the north-south axis.
Jurassic. Australia hasn't changed position much, but
has rotated slightly to the east.
Jurassic. Australia has moved further south.
||Valanginian. Australia has returned to near the South Pole.
Cretaceous-Sea level rose, reached a maximum level at about
110 million years ago as continents separated from Gondwana,
then dropped again by the end of the Late
||Albian. Australia has moved north so that the tips of
northern Australia are just north of the 45oS latitude.
||Maastrichtian. Australia has moved further north so that
northern Australia is north of 45oS latitude. The break
from Antarctica has begun.
Eocene. Australia has moved further north, the 45oS
latitude now passes through the top 1/3 of the continent along
the east-west axis. Has separated from Antarctica.
Miocene. Has moved further north. Only Tasmania and
parts of Victoria are south of the 45oS latitude.