Fossil stromatolite slab polished on one side
Dimensions at widest points approx. 220 mm x 170 mm x 10 mm thick.
Weighs 1,006 grams
From an unassigned unit of the Wyloo Group. Age is approx. 1.8 billion years.
From the same outcrop as Pseudogymnosolenid type which occur as a substrate beneath these ones.
From south west of Newman Western Australia.