Polished fossil stromatolite. Eucapsiphora leakensis. EUC136 mookalite Asperia ashburtonia from the Proterozoic

Asperia ashburtonia from the Proterozoic "Duck Creek Dolomite"

Weighs 790grams

SD155 Stromatolitic Dolomite rough rock

5 billion years)

Western Australia

Polished fossil stromatolite. Eucapsiphora leakensis. EUC136 mookalite Asperia ashburtonia from the ProterozoicEUC136 Very rare fossil stromatolite slab polished on one side. Eucapsiphora leakensis. These small branching columnar stromatolites are from the Mount Leake Sandstone, Earaheedy Group, Western Australia. Location is near the town of Meekatharra. Age is Palaeoproterozoic (1. 6 to 2. 5 billion years). The environment they grew in was most probably a sandy tidal flat or braided river channel. Approx. 105 mm x 75 mm x 7 mm thick. 85 grams.