Polished fossil stromatolite slab. Domal from Irregully formation IRR114

IRR114  Fossil stromatolite slab polished on one side.

A domal stromatolite from the Proterozoic "Irregully Formation" in Western Australia.
  Yet to be formally identified but possibly Paniscollenia .

Age is approx. 1.1 billion years.

Dimensions approximately 180 mm x 70 mm x 7 mm thick

Weighs 224 grams