Rocks & Pools at Burry Holms 41

Detail of bio-eroded area of marine worm burrows on the waterline of a small rock pool in Carboniferous Limestone

Rocks & Pools at Burry Holms 41 – Detail of bio-eroded area of marine worm burrows on the waterline of a small rock pool in Carboniferous Limestone – with grazing Common Periwinkle

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