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first appeared in our oceans about 550 million years ago before going extinct around 240 Million Years Ago
25" tall x 1" wide
Utah Septarian Nodules or Geodes formed during the Cretaceous Period 66-146 million years ago
*Rare Utah Septarian Slab with Calcite Crystal Hollow and detailed Fossil imprint
Fossilized Margaretia dorus Cambrian Algae pyrite crystals first appeared in our oceansAmazing example of an authentic fossilized algae specimen Margaretia dorus. Age: Middle Cambrian (521 to 497 mya) Species Name: Margaretia dorus Locality: Wheeler Shale, Millard County, Utah Size: Approximately 2"x3 4" Margaretia Algae on a 2 3 4"x2" x 1 4" thick piece of shale Comes with stand Most collected Margaretia are not this detailed and have an orange red coloration due to high iron content which most often causes a lack of clear distinct
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