In the dark seas of the ancient world, few creatures were as interesting as the plesiosaur: a long-necked marine reptile with four large flippers. These fearsome predators dominated the oceans in the ...

In the rolling hills of southwest Germany, there is a rock layer that has yielded some of the most spectacular marine fossils in the world. Known as the Posidonia Shale, this 183-million-year-old ...

Serpentine-necked, four-flippered plesiosaurs were among the most successful marine predators in the time of dinosaurs. A remarkably complete and well-preserved fossil has revealed that at least some ...

A remarkably preserved plesiosaur fossil has revealed both smooth and scaly skin, offering new clues about how this ancient sea creature swam and moved along the ocean floor. Some skin cells were so ...

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Fossil remains of a plesiosaur, an ancient marine predator, are unveiled at Perot Museum lab Fossil preparation on remains are taking place at the Perot Museum of Nature and Science fossil lab.