Polished fossil stromatolite. Pseudogymnosolenid type. DOG163 outback jasper Chert Breccia slab

Chert Breccia slab

Weighs:  174 grams

Weighs 294 grams

100 mm x 90 mm x 30 mm thick

Polished fossil stromatolite. Pseudogymnosolenid type. DOG163 outback jasper Chert Breccia slabDOG163 Fossil stromatolite slab, polished on one side 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. 145 mm x 65 mm x 7 mm thick. Weighs