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New Fossil Reveals Common Ancestry of Lobsters, Butterflies, Spiders

posted: 03/27/15
by: Discovery.com Staff
Yawunik kootenayi Fossil
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Researchers discovered this a freshly excavated fossil specimen of Yawunik kootenayi, a common ancestor to modern butterflies, lobsters and spiders.
Robert Gaines

From Discovery News

A marine creature that lived 508 million years ago and gave rise to today's butterflies, spiders and lobsters has been identified and virtually recreated.

The new species, Yawunik kootenayi, lived more than 250 million years before the first dinosaurs. It is described in the latest issue of the journal Paleontology.

"This creature is expanding our perspective on the anatomy and predatory habits of the first arthropods, the group to which spiders and lobsters belong," lead author Cedric Aria of the University of Toronto said in a press release.

Click here for the full story from Discovery News

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