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Secondary period


The Mesozoic Era (pronunciation: /ˌmɛsəˈzɪk, ˌm-, -s-/ or /ˌmɛzəˈzɪk, ˌm-, -s-/) is an interval of geological time from about 252 to 66 million years ago. It is also called the Age of Reptiles, a phrase introduced by the 19th century paleontologist Gideon Mantell who viewed it as dominated by diapsids such as Iguanodon, Megalosaurus, Plesiosaurus and Pterodactylus. This Era is also called from a paleobotanist view the Age of Conifers.


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Wikipedia

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