Polished fossil stromatolite. Pseudogymnosolenid type. DOG165 polished rock 140 mm x 125 mm

140 mm x 125 mm x 40 mm thick

CC119  Chrome chalcedony slab

quartz and chert

Dimensions at widest points approximately 105 mm  x 95 mm wide x 6 mm thick

Polished fossil stromatolite. Pseudogymnosolenid type. DOG165 polished rock 140 mm x 125 mmDOG165 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