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Name:
Phyllograptus sp.
Age: Lower Ordovician
Formation: Fillmore Formation
Location: Millard County, Utah
Size: Graptolite is 1.4 inches long
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This is a wonderful specimen of a puzzling fossil. This is Phyllograptus sp., a graptolite, from the Ordovician of Utah. Graptolites are extinct marine organisms which are still argued about by authorities as to where they fit into the big picture. Usually, graptolites are preserved as thin, chalk-like markings on the rock. However, this graptolite is extremely large and exhibits excellent detail. The ''leaf-like'' fossil has small, spine-like, clearly defined projections which radiate from the body. The graptolite has excellent color and contrast and is well presented on the somewhat rectangular plate of shale. This is a great example of this enigmatic fossil.
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