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 ...

They recently published their discovery in the Journal of Paleontology. “The Mazon Creek Fossil-Lagerstätte is rightly famous for the abundance of marine and non-marine fossil biota found in ...

A fossil of the creature was originally unearthed from the Mazon Creek deposit in northeastern Illinois by Bob Masek, a ...

The 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.