Conostichus ornatus, a dwelling trace fossil that was possibly made by a sea anemone (PRI 76854). This specimen, which was cut in half to show internal structure, is from the Pennsylvanian of Clay County, Kentucky and is part of the research collections of the Paleontological Research Institution, Ithaca, New York. The diameter of the specimen is approximately 9.5 cm. Model by Emily Hauf.
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