Traces on Whiteford Beach 4 – Sandgrain tubes of marine worms projecting from the sediments with seashells at Whiteford Sands, Gower, South Wales, August 2015.
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Traces on Whiteford Beach 4 – Sandgrain tubes of marine worms projecting from the sediments with seashells at Whiteford Sands, Gower, South Wales, August 2015.