Queensland graziers unearth 100m-year-old plesiosaur remains likened to Rosetta Stone

Amateur fossil hunters find skull connected to body of marine giant elasmosaur for the first time in Australia

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A group of female graziers from outback Queensland who hunt fossils in their downtime have uncovered the remains of a 100m-year-old creature that palaeontologists are likening to the Rosetta Stone for its potential to unlock the discovery of several new species of prehistoric marine giant.

One of the Rock Chicks" - as the amateur palaeontologists call themselves - uncovered the fossilised remains of the long-necked plesiosaur, known as an elasmosaur, while searching her western Queensland cattle station in August.