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Fossil Archeocyathid Extinct Sponge

Archeocyathids are an extinct sponge that fed on stromatolites during the Cambrian. The interesting thing about this site in Big Pine, California is that this location is where the first known reefs began to form on earth!  

Age Cambrian Era
Category Invertebrate
Formation Unknown
Location Big Pine, California, USA
Species archeocyathid

ID3391
Membert$
Date Added7/3/2009

The archeocyathid is the white dot in the photo.
I added some water to try to make it more visible.
This photo shows a better example of one. I did not find this one. The archeocyathids look almost like a bicycle wheel with little spokes branching off from the center.
  

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