Pieces of fossilized Bryozoan sea mats, like fine lace netting.
Despite their delicate appearance, they have managed to survive intact in these rock layers for over 300 million years.
County Donegal, Ireland.

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Overlapping Bryozoan sea mats on a large kelp frond. These are colonies of individual animals called zooids that attach them selves to seaweeds and other surfaces.
County Clare, Ireland.

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Bryozoan sea mats on dried out Kelp fronds. These colonies of individual zooids are known as Bryozoans. When living each tiny cell in this lace-like structure would have contained an individual zooid. County Clare, Ireland.

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