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Massive Starlet coral at Dry Tortugas National Park

By Communications and Publishing May 2012 (approx.)
A large boulder-shaped Massive Starlet coral on the sea floor in Dry Tortugas National Park
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Detailed Description

Scientists used a core from this Massive Starlet (Siderastrea siderea) coral colony in Dry Tortugas National Park to reconstruct ocean temperatures going back to 1837. Photo: USGS

Sources/Usage

Public Domain.