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Cretaceous
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The Cretaceous is a geological period that lasted from about 143.1 to 66 Ma. It is the third and final period of the Mesozoic Era, as well as the longest. At around 77.1 million years, it is the ninth
The impact of a meteorite or comet is today widely accepted as the main reason for the Cretaceous–Paleogene extinction event.
The impact of a meteorite or comet is today widely accepted as the main reason for the Cretaceous–Paleogene extinction event.
Drawing of fossil jaws of Mosasaurus hoffmanni, from the Maastrichtian of Dutch Limburg, by Dutch geologist Pieter Harting (1866)
Drawing of fossil jaws of Mosasaurus hoffmanni, from the Maastrichtian of Dutch Limburg, by Dutch geologist Pieter Harting (1866)
Scipionyx, a theropod dinosaur from the Early Cretaceous of Italy
Scipionyx, a theropod dinosaur from the Early Cretaceous of Italy
Facsimile of a fossil of Archaefructus from the Yixian Formation, China
Facsimile of a fossil of Archaefructus from the Yixian Formation, China
Mesozoic
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The Mesozoic Era is an era of Earth's geological history, lasting from about 252 to 66 million years ago, comprising the Triassic, Jurassic and Cretaceous Periods. It is characterized by the dominance
Plateosaurus (a prosauropod)
Plateosaurus (a prosauropod)
Sericipterus
Sericipterus
Stegosaurus
Stegosaurus
Tylosaurus (a mosasaur) hunting Xiphactinus
Tylosaurus (a mosasaur) hunting Xiphactinus