Polished fossil stromatolite. Pseudogymnosolenid type. DOG164 polished jasper 6 billion years

6 billion years

IRR 125    Fossil stromatolite slab

Fossil stromatolite polished slab

from the Proterozoic "Duck Creek Dolomite"

A large polished slab of Starry Jasper

Polished fossil stromatolite. Pseudogymnosolenid type. DOG164 polished jasper 6 billion yearsDOG164 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. 190 mm x 90 mm x 10 mm thick. Weighs