Age: Middle Cambrian
Formation: Spence Shale
Location: Bear River Range, Idaho
Size: Plate is 7 inches tall
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This is fabulous grouping of very uncommon echinoderms. These are detailed Gogia palmeri (label said G. palmeri, but could now be G. juvalorum) from Idaho. This rare specimen was found by George Lee in 1976. These primitive echinoderms used to be known as eocrinoids, but have now been re-classified as cystoids. The preservation of these primitive echinoderms is just wonderful. The large-plated, ornate calyces and many of the long, segmented arms are extremely detailed and well preserved. The cystoids have great natural color and contrast and are naturally showcased on the large matrix plate. This is a very collectible multiple specimen of this rare, primitive echinoderm from the Spence Shale of Idaho.