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Where do modern stromatolites grow in Western Australia?

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A detailed geologic time scale chart displaying Earth's history from the Hadean Eon over 4.5 billion years ago to the present, organized by eons, eras, periods, epochs, and ages with color-coded columns and corresponding dates in millions of years. — Precambrian The stratigraphic chart of geologic time.

In Western Australia, modern stromatolites grow in the warm intertidal waters of Shark Bay.12

These structures thrive there in great abundance because the high evaporation rates in the shallow waters create high concentrations of salt. This hypersaline environment discourages snails and other organisms from grazing on the matlike layers of blue-green algae that form the stromatolites.1