Petrified algae, corals and sponges from prehistoric times are a common sight on rock formations in the tidal zone along the Irish Sea, here at Portmarnock beach.

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Size: 3776px × 2520px
Location: Ireland, County Fingal, Partmarnock
Photo credit: © Achim Zeilmann / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ages, algae, coast, coastal, era, geological, geology, ireland, irish, maritime, nature, outdoors, petrification, petrified, prehistoric, remains, rock, sea, shore, shoreline, stone, tides