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Fossilized Coral

A round cluster of fossilized coral with many stone fins surrounding it.

Fossils can be difficult to see because they are often covered by newer cave formations such as this boxwork. This fossilized coral was converted to calcite, so when the limestone was eroded by carbonic acid as the cave was formed, the fossil was left behind. The boxwork was created after the fossil. Colonial coral fossils are difficult to spot but relatively common in Wind Cave.

U.S. National Park Service

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Wind Cave National Park, Code: WICA

Wind Cave National Park, Custer County, South Dakota
Latitude: 43.5802993774414, Longitude: -103.439002990723

NPS.gov Collection

7/16/2010 1:22:29 AM

Public Can View

Friday, July 3, 2020 11:23:19 AM

Sunday, May 21, 2023 9:14:35 PM

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6 mm

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Thursday, June 9, 2005 7:11:00 AM

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Scenic