Age: Middle Cambrian
Formation: Wheeler Shale (Red Zone)
Location: Millard County, Utah
Size: Plate is 10.4 inches tall
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Here is a top quality example of 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 branching form and very good detail. Under magnification, the perforations are easily seen. The fossil has breathtaking natural yellow-orange coloration and striking contrast. The algae is well showcased on the large plate of shale. This is an extremely collectible display example of this uncommon fossil from Utah.