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Name:
Choia utahensis and Elrathia kingi
Age: Middle Cambrian
Formation: Wheeler Shale
Location: Millard County, Utah
Size: Plate is 3.9" X 4.2"
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This is a rare Cambrian association piece. It is a slab with Elrathia kingi and a large Choia utahenesis from Utah. It is very unusual to find trilobites and a sponge preserved toget her on the same rock! Choia is a rare type of sponge with radiating spines, and is also found in the Burgess Shale. This plate was found in the Wheeler ''Red Beds'', giving the fossil a reddish-pink coloration. This is an excellent example of two very different organisms from the Cambrian Seas.
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