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Very Unusual Choia utahensis Sponge Plate
SPONGES
Stock Number XISP305
EXTINCTIONS Choice

Name:   Choia utahensis
Age:  Middle Cambrian
Formation:  Marjum Formation
Location:  Millard County, Utah
Size:  Plate is 6.2 inches across
This specimen is not for sale
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Here is a nice multiple plate of fossil sponges. These are Choia utahensis from the Cambrian of Utah. Sponges are very uncommon in the fossil record, due to their delicate nature. Cambrian sponges apparently had skeletal nets that were weakly united - they generally required quiet water for preservation. There are many examples of this sunburst-shaped sponge on this plate. The fossil sponges have good color and contrast and display their spines very well. This is an uncommon multiple plate of fossil sponges from Utah.

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