Traces on Whiteford Beach 7 – Sandgrain tubes of marine worms forming a thick layer through the sediments seen in cross-section with seashells on the edge of a beach stream at Whiteford Sands, Gower, South Wales, August 2015.
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Traces on Whiteford Beach 7 – Sandgrain tubes of marine worms forming a thick layer through the sediments seen in cross-section with seashells on the edge of a beach stream at Whiteford Sands, Gower, South Wales, August 2015.