Fossil stromatolite polished on one side with natural weathered exterior.
Dimensions at widest points approx. 180 mm x 130 mm x 50 mm thick.
Weighs 2,148 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.