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More answers
it lasted 255 million years and is started 240 ,million yaers
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Wiki User

15y ago
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For the better part of the mesozoic era, lasting about 180 million years.

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Wiki User

15y ago
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a long time ago :]

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Wiki User

14y ago
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208 to 144 million years ago

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Wiki User

12y ago
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Q: How long ago was the Jurassic era?
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