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Lower Jurassic |
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Lower Jurassic [′lō·ər ju̇′ras·ik] (geology) The earliest epoch of the Jurassic period of geologic time, extending from about 185- to 170,000,000 years ago. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| The thing must have been sixteen or eighteen feet in length and closely resembled pictures I had seen of restored plesiosaurs of the lower Jurassic. |
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