Polished fossil stromatolite. Pseudogymnosolenid type. DOG164 prehnite 5 mm thick at widest

5 mm thick at widest points

Dimensions approximately 170 mm x 130 mm x 15 mm thick

IRR 124    Fossil stromatolite slab

Each polished face approximately 95mm x 30mm x 30 mm thick

Weighs 192 grams

Polished fossil stromatolite. Pseudogymnosolenid type. DOG164 prehnite 5 mm thick at widestDOG164 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