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Sunday 1 June 2014

525.00 MILLION YEARS AGO - 515.00 MILLION YEARS AGO : Antrim Plateau Forms

Antrim Plateau Forms

        The Antrim Plateau in northwestern Australia forms from flood basalts, layers of cooled lava built up gradually by repeated outpourings from fissures in the ground. 


530.00 MILLION YEARS AGO : Animals Preserved in Burgess Shale

Animals Preserved in Burgess Shale

        Very unusual soft-bodied animals, including trilobites and other marine invertebrates, are buried under ocean sediment and preserved in a fossil bed in Canada known as the Burgess Shale.