This Specimen has been sold.
2.4" Carved Fossil Horn Coral Turtle - Idaho
This is a polished turtle sculpture carved from a piece of limestone with a white horn coral fossil cross section. This little guy measures 2.4 inches long and has been polished to a glossy finish.
Horn coral, or Rugose coral, first appeared in the geological record 488 million years ago and went extinct during the great Permian extinction 251 million years ago. They get their name from the hornlike structures built by the coral animal. They are very often used as an index fossil to help correlate the geological ages of different formations.
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