Fossil Jellyfish Classic Boxed Specimens Size:Large brother of the famous fossil-hunter

brother of the famous fossil-hunter Mary Anning

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A stand and informational card is included with each fossil

In other studies

This process generated an enormous amount of salvage material

Fossil Jellyfish Classic Boxed Specimens Size:Large brother of the famous fossil-hunterLimited Availability This specimen is an ichnofossil of an Essexella, an extinct genus of scyphozoan jellyfish dating to the Late Carboniferous Period (c. 300,000,000 years ago). Such soft body structures are usually lost to time, but at Mazon Creek, Illinois, a unique fossil record captures cycles of rapid coastal flooding that combined layers of ocean sediment with iron rich groundwater to produce tough ironstone nodules. This makes it possible for