The Pit that Solves a Murder

to Earth Science Australia...

to Time and Space Science...

The Pit that Solves a Murder - crocodile attack 4.2Million years ago - Let the rocks tell their story...



The bone shown below is a limb bone from a kangaroo that lived 4.2 million years ago.
Notice that the bone is broken on one end and has a circular pit near the socket a the other end.
It was unearthed by Earth Science Australia at a geological site that was in earlier times a plunge pool at the base of a waterfall.
Megafauna roamed Australia at this time, snakes the size of telephone poles, giant kangaroos, wombats and huge browsing and grazing diprotodontids.




flat_faced_kangaroo


Creatures would come to the pool for a drink but there was danger lurking there - huge crocodiles!

crocodile_teeth

So we know the fate of this kangaroo - murdered by a crocodile!

indent of crocodile tooth

In the image below you can see the stress fractures caused by the enormous pressure of the crocodile's jaw!