DEAGOSTINI / UIG / SCIENCE PHOTO LIBRARY DEAGOSTINI / UIG / SCIENCE PHOTO LIBRARY
Cretaceous dinosaurs. Computer illustration of a Hypselosaurus sp. sauropod (top) with tyrannosaur (middle) and ornithomimid (ostrich-like, bottom) theropods from the Cretaceous period (around 145 to 66 million years ago). Hypselosaurus lived during the Maastrichtian stage (around 68 to 66 million years ago) of the Late Cretaceous period, in what is now Europe.
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