Today, armed with our knives and screwdrivers and geology hammers, we visited Batesford Quarry on the outskirts of Geelong.
It's astonishing to think that you can chip off a limestone chunk and expose almost intact fossils of marine creatures that were alive 15 million years ago, creatures that look like those we find on sea shores today like sea urchins, cowie shells, bivalves, sponges and coral. And yes, we found a few shark teeth. It was a most interesting excursion.
A geologist called David Williams has written an interesting blog about finding a new species of barnacle in the wall of a building in Melbourne that is faced with Batesford Limestone.