At http://phys.org/print349947893.html … past tectonic movement in Western Australia is being blamed for coral platforms left high and dry. Apparently, the thinking is that uplift has caused this to happen rather than adjustments of global sea level.
However, the evidence appears to support the former view as the nature of the coral platform is not entirely consistent. It changes in different places along the platform. According to the geologists this is attributable to folding of older bedrock – but you may also note this is not entirely irrefutable. As far as the nature of the coral platform is concerned these marine creatures adjust to rising and falling sea levels – and the platform represents a period when the sea level was higher and predictably the platform is dated to the last interglacial period.