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Name:
Chancelloria pentacta
Age: Cambrian
Formation: Wheeler Formation
Location: Millard County, Utah
Size: Larger Chancelloria is 2.4 inches long
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Here is an uncommon double specimen of an unusual fossil invertebrate. These are Chancelloria pentacta from 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". These fossils have great form and exhibit excellent detail - the star-shaped sclerites are easily seen. The coloration is beautiful and fully natural. The fossils are well centered on the rectangular plate of shale. This is a very fine multiple specimen of this odd Cambrian animal.
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