Polished fossil stromatolite. Pseudogymnosolenid type. DOG165 polished rock 5 mm thick

5 mm thick

From the Eastern Goldfields region of Western Australia

BA105  Polished Brazilian Agate slab

140 mm x 125 mm x 40 mm thick

quartz and chert

Polished fossil stromatolite. Pseudogymnosolenid type. DOG165 polished rock 5 mm thickDOG165 Fossil stromatolite slab, polished on one side. Superb museum quality specimen ! An as yet unidentified stromatolite, form of Pseudogymnosolenid type. The stromatolite occurs as small digitate columns which are finely laminated. It probably grew in shallow water conditions with intermittent subaerial exposure. From an unassigned unit of the Wyloo Group. Age is approx. 1. 8 billion years. From south west of Newman Western Australia. Approx. 285