Name:
Chancelloria pentacta
Age: Middle Cambrian
Formation: Wheeler Shale
Location: Millard County, Utah
Size: Plate is 3.6 inches across
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Here is a nice plate of unusual Cambrian fossils. This is a rare multiple slab of Chancelloria pentacta from the Wheeler Formation of Utah. This type of animal is sort of an enigma, and has been found in the Burgess Shale fauna. It was first thought to be a ''glass sponge'', but it has now been described as a ''coeloscleritophoran''. There are two distinct examples of this strange fossil on the plate. Both fossils have nice form and exhibit fine detail - the star-shaped sclerites are very easily seen. The reddish-orange color contrasts beautifully with the grey matrix plate. And there is also a rare Ctenocystoid at the top of the left Chancelloria. This is a cool double specimen of this puzzling Middle Cambrian animal, with a Ctenocystoid as a bonus.
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