In the past the central part of Australia was a great shallow inland sea.
Ichthyosaur - large carviverous swimming
reptile from the shallow sea
Life was abundant both within the sea and along the surrounding shoreline.
Jaw of cow size grazing marsupial called euowenia.
Food was plentiful and conditions remained constant for a very long period
Detail of a bullock sized grazing "diprotodontid" marsupial
Consequently the creatures had a very long time to adapt,specialise and
become experts at exploiting individual and particular food types.
With little competition for the same plentiful food they were ableto
evolve into larger and larger sizes
But not completely safe! This leg bone, found along the ancient shoreline
is that of a giant flat-faced kangaroo.
The pen points to a circular tooth indentation of a crocodile attack.