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Name:
Margaretia dorus
Age: Middle Cambrian
Formation: Wheeler Formation
Location: Millard County, Utah
Size: Algae is 2 inches long
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Here is an extremely unusual fossil algae specimen. This is Margaretia dorus from the Cambrian of Utah. Margaretia was probably a thin, frond-like algae similar to modern kelp. The fronds are perforated by a network of small oval holes. This type of algae is also found in the famous Burgess Shale deposits of Canada. This specimen has wonderful form and good detail. Under magnification, the perforations are easily seen. The fossil has breathtaking natural red coloration and striking contrast. The algae is well positioned on the natural plate of matrix. This is a great example of this uncommon fossil from Utah.
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