Small fossilized Brachiopod shells. The remains of these shellfish are scattered throughout the limestone rocks of the Burren.
County Clare, Ireland.

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A Brachiopod fossil with some Small Periwinkles (Melarhaphe neritoides) on and around it. A Marine shellfish of the past and some from the present day, whose lives are separated by over 300 million years.
County Clare, Ireland.

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Brachiopod fossils, in shale. Certain shale layers in the Cliffs of Moher and some of the limestone layers in the Burren are packed with the fossilized remains of these ancient shellfish.
County Clare, Ireland.

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#fossilfriday, very nice partly silicified #brachiopod, showing it's internal system to filter water and feed.

Heart of Stone"
A Calcite heart in a limestone boulder.

I think this may be a pair of fossilized Brachiopod shells 🤔
County Clare, Ireland.

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A Brachiopod fossil embedded in the Burren limestone.
County Clare, Ireland.

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A fossilized Brachiopod shell - a type of marine mollusc that thrived on the bed of the tropical sea that covered this part of the planets surface over 320 million years ago.
County Clare, Ireland.

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Brachiopod fossils in Shale layers from the Cliffs of Moher, County Clare, Ireland.

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Brachiopod fossils - Stone imprints of the shells that littered the sea floor that covered the Burren area over 320 million years ago.
County Clare, Ireland.

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This sandwich-like structure of columns gives strength and flexibility to the shell of a #brachiopod and has helped researchers understand the evolution of these distinctive structures during the Cambrian explosion. #Evolution #ReviewedPreprint #12DaysOfeLife https://elifesciences.org/reviewed-preprints/88855?utm_source=mastodon&utm_medium=social&utm_campaign=organic_12Days
Evolution and diversity of biomineralized columnar architecture in early Cambrian phosphatic-shelled brachiopods