Fossil Branch (Calamites cisti), Mazon Creek #MC17

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Fossil Leaf (Cordaites borassifolius), Mazon Creek #MC17
  • Fossil Leaf (Cordaites borassifolius), Mazon Creek #MC17
  • Fossil Leaf (Cordaites borassifolius), Mazon Creek #MC17

  • Fossil Branch (Calamites cisti), Mazon Creek #MC17

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 Description    

Part of a Carboniferous age fossil branch or trunk section (Calamites cisti) from the Francis Creek Shale.
 Condition Good
 Size 110mm (length of fossil, excluding surrounding rock)
 Age 300 million years

 Location

Braidwood, Illinois, Francis Creek Shale