The fossil market has no shortage of STROMATOLITE fossils but in every case, they are sliced and polished slabs of a former fossil colony. The fossil colonies look little more than amorphous stone blobs prior to slicing, lacking any fine original life-like detail. This is an EXTREMELY RARE and unusual example of an OLIGOCENE lacustrine (formed in a prehistoric lake) stromatolite colony once deposited by prehistoric cyanobacteria.
This specimen has been laboriously prepared in our lab where we painstakingly removed the upper matrix rock layer to reveal all the delicate intact anatomy of each colony. There is even a portion of the colony that displays a sheet of drusy crystals. The cyanobacteria formation detail is so minute and intact that it appears as if still alive exactly similar to the living specimens found today in Shark Bay, Australia. We have never before seen such an exquisite fossilized cyanobacteria colony as these.