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  1. Jurassic - Wikipedia

    The Jurassic constitutes the second and middle period of the Mesozoic Era as well as the eighth period of the Phanerozoic Eon and is named after the Jura Mountains, where limestone strata …

  2. Jurassic Period | Climate, Plants, Animals, & Facts | Britannica

    Dec 8, 2025 · Jurassic Period, second of three periods of the Mesozoic Era. Extending from 201.3 million to 145 million years ago, the Jurassic was a time of global change in the continents, …

  3. Jurassic Period—201.3 to 145.0 MYA - U.S. National Park Service

    Apr 27, 2023 · The Jurassic Period was a golden time for dinosaurs, which flourished for 180 million years. Huge sauropod herbivores (such as 87-foot [27-meter] long Diplodocus) and …

  4. Jurassic Period Information and Facts - National Geographic

    Jan 6, 2017 · The Jurassic is a geologic period that took place about 201.3 million years to 145 million years ago and constitutes the middle part of the Mesozoic era. The Jurassic period was …

  5. The Jurassic Period: How did dinosaurs go from basal to bulky?

    The Jurassic is a geological period that began 201.4 million years ago and ended 145 million years ago. It’s part of the Mesozoic Era – the part of our planet’s prehistory known as the age …

  6. The Jurassic Period

    Named for the Jura Mountains on the border between France and Switzerland, where rocks of this age were first studied, the Jurassic has become a household word with the success of the …

  7. Jurassic Period | Natural History Museum

    Oct 3, 2012 · Dinosaurs grow larger, with the largest saurichians appearing in the Upper Jurassic. The other main dinosaur group, the ornithicians, makes their first appearance in the Jurassic. …

  8. Jurassic - New World Encyclopedia

    The Jurassic period is an interval of about 55 million years defined on the geologic time scale as spanning roughly from 200 to 145 million years ago (mya), from the end of the Triassic period …

  9. Jurassic - Wikiwand

    The Jurassic (/ dʒʊˈræsɪk / juurr-ASS-ik[2]) is a geologic period and stratigraphic system that spanned from the end of the Triassic Period 201.4 million years ago (Mya) to the beginning of …

  10. Jurassic Period | History Timeline

    The Jurassic Period, which lasted from 201.3 million to 145 million years ago, was a time of great change and evolution in Earth's history. It was during this period that dinosaurs rose to …