Unique to the Mazon Creek Formation in Illinois, it became its state fossil in 1989. Soft-bodied and relatively small (a living specimen would fit in a human hand), with its stalked eyes and long ...
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Scientists Can’t Quite Figure Out This Fossil Of A 308-Million-Years-Old ArachnidThe cool thing about fossils is that you never know what you ... “Douglassarachne acanthopoda comes from the famous Mazon Creek locality in Illinois and is about 308 million years old.
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A Strange Fossil Unearthed In Illinois During The 1980s Revealed A Prehistoric Arachnid Once Roamed The State Over 308 Million Years AgoA fossil of the creature was originally unearthed from the Mazon Creek deposit in northeastern Illinois by Bob Masek, a ...
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