Fossil stromatolite polished on one side with natural weathered exterior.
Dimensions at widest points approx. 180 mm x 105 mm x 40 mm thick.
Weighs 1,716 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.