Anne Miles 70+ 4373/74
Mount Gambier Limestone
Mount Gambier limestone contains fossils of Foraminifera (Forams), single celled organisms with shells that have been abundant as fossils for the last 540 million years.
There are about 4000 species living in the world’s oceans today, varying from micrometers to several centimeters in size, they feed on bacteria and algae.
Formed in warm shallow seas Mount Gambier limestone is a sedimentary rock composed of calcium carbonate created by the accumulation and solidification of marine fossil debris including Forams.
My design shows some of the fascinatingly intricate shapes and patters to be found in these tiny organisms