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Name:
Gogia spiralis
Age: Middle Cambrian
Formation: Wheeler Formation
Location: Millard County, Utah
Size: Plate is 4.7 inches across
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This is a wonderful pair of Gogia spiralis from the Middle Cambrian of Utah. These primitive echinoderms used to be known as eocrinoids, but have now been re-classified as cystoids. These distinct cystoids are complete and exhibit wonderful detail. The elongate, multi-plated, sac-like holdfasts are intact and very distinct. Each cystoid has a large-plated, nodose calyx that is quite evident, and twisted, spiraled arms that are beautifully showcased in a splayed position. The fossils have excellent color and contrast and are nicely presented on the semi-squared plate of shale. This is a very collectible double example of this very displayable echinoderm.
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