Description SIZE (Picture scale cube=1cm): 15-25mm (Range) All of our Fossils are 100% Genuine Specimens & come with a Certificate of Authenticity! Type: Stromatolite Age: Cretaceous Location: Bolivia Stromatolites are layered bio-chemical accretionary structures formed in shallow water by the trapping, binding and cementation of sedimentary grains by biofilms of micro-organisms, such as cyanobactria. The real significance of stromatolites is that they are the earliest fossil evidence of life on Earth. WILL DIFFER TO PHOTO: The image shows an example of the single specimen you will receive. This will be picked from our stock box graded and with a size approximately within the size range indicated. It will not be the same specimen shown in the photo, the colours, shape, size and style may vary as with any natural item. To guarantee the specimen you receive will be representative by that in photo, we would always recommend the Actual as seen version of this item.
