Polished fossil stromatolite . Conophyton garganicum australe. CPH111.

CPH111.   Fossil stromatolite slab polished on one side.

Conophyton garganicum australe from the Mesoproterozoic "Top Camp Formation".

Age is approx. 1.0 - 1.6  billion years.

From the Ashburton region in Western Australia.

Approx.  190 mm x 160 mm x 9 mm thick .

562 grams.