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Brachiopods in Wind Cave

small shell fossils on a brown cave wall

Brachiopods are shellfish that were extremely common when the Pahasapa Limestone was formed. The calcium from the shells and bones of dead sea creatures were crushed by pressure to create the limestone that Wind Cave sits in. These are the most common fossils seen in the cave and are one to two inches wide on average. Most species of brachiopods are extinct.

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 1:22:36 AM

Friday, July 3, 2020 11:07:47 AM

Friday, July 3, 2020 11:07:47 AM

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OLYMPUS IMAGING CORP. OLYMPUS IMAGING CORP., u1050SW,S1050SW

1/30 sec at f / 3.5

6.7 mm

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Saturday, November 14, 2009 9:26:00 PM

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Scenic