#irishfossils — Public Fediverse posts

Solitary Rugose Coral fossils - remains of the tropical seabed that once covered this area over 300 million years ago.
County Donegal, Ireland.

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A Solitary Rugose Coral fossil protruding from it's sedimentary bed.
County Donegal, Ireland.

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A fossilized Bryozoan sea mat from over 300 million years ago and a couple of ones I found growing on some seaweed a few weeks back. Relatively unchanged after all that time!!
County Donegal, Ireland.

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A Solitary Rugose Coral fossil with it's internal structure revealed.
County Donegal, Ireland.

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Goniatite fossils - Ancient relatives of Squid and Octopus that swam in the warm seas that covered this area over 300 million years ago.
County Clare, Ireland.

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The variety of size and orientation of these Goniatite fossils makes them look like celestial bodies suspended in the darkness of space.
County Clare, Ireland.

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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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Fossilized Communal Coral running through this limestone pebble - evidence of the tropical seabed that once covered this area.
County Clare, Ireland.

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Looks like he's spotted something worrying creeping up behind me 😯🤣🤣

Goniatite fossils in a shale pebble.
County Clare, Ireland.

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Goniatite fossils packed throughout this piece of shale. The shells of these ancient relatives of Squid and Octopus must have littered the sea floor that covered this part of the earths surface over 300 million years ago.
County Clare, Ireland

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A sea smoothed Concretion - Concretions can form in sedimentary layers (river delta layers in this case) around bits of organic material or pebbles, which then become harder than the surrounding rock. They often erode out later as circular or rounded stones - water, waves and sand have finished the polishing job on this one.
County Clare, Ireland.

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Carboniferous coral fossils make for great polka dot pebbles.
County Donegal, Ireland.

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Celestial stone.
Goniatite fossils embedded throughout this shore stone looks like spiraling galaxies in deep space.
County Clare, Ireland.

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A perfectly positioned Goniatite fossil in the shore smoothed pebble. Wet and Dry.
County Clare, Ireland.

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Fossilized Bryozoan sea mats and some Crinoid discs. Sea mats are colonial invertebrates that leave behind calcareous skeletons that can look like lace or mesh. These particular fossilized ones are over 300 million years old.
County Donegal, Ireland.

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Goniatite fossils spiraling through a piece of dark shale concretion.
County Clare, Ireland.

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Goniatite fossil revealed in a sea smoothed, stormbeach stone.
County Clare, Ireland.

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Goniatite fossils spread throughout this piece of shale from the Cliffs of Moher. Evidence of lives lived on this same spot over 300 million years ago.
County Clare, Ireland.

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A Solitary Rugose Coral fossil protruding from the surrounding rock. Part of an ancient tropical sea bed that once covered this area.
County Donegal, Ireland.

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Colonial Coral fossil. Exposed in Burren limestone.
County Clare, Ireland.

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Fossilized Crinoid pieces - like scattered nuts, gears and bolts.
County Donegal, Ireland.

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An Orthoconic nautiloid fossil (wet and dry).
"The curved septae separating the chambers are distinctive and the blobs in the centre are parts of deposits along the central siphuncle which is what connects all the chambers." Thanks to @burrengeopark for the ID and info.
County Donegal, Ireland.

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A fossilized Goniatite shell, with what were its gas filled flotation chambers nicely revealed.
Counry 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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A fossilized piece of a Solitary Rugose Coral.
County Donegal, Ireland.

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Fossilized Solitary Rugose Corals - the remains of an ancient tropical sea bed.
County Donegal, Ireland.

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Fossilized Goniatites like galaxies spiraling through space. Over 300 million years in the making.
County Clare, Ireland.

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A Solitary Rugose Coral fossil in Burren limestone.
County Clare, Ireland.

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A Solitary Rugose Coral fossil in Burren limestone.
County Clare, Ireland.

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Stigmaria - this is a fossilized root section of a Lepidodendron "tree" still embedded in the rock.
Over 300 million years ago, this area was covered in forest of these large tree-like plants, related to modern Club mosses.
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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A fossilized root section - Lepidodendron. Over 300 million years ago, while still living, these roots would have helped sustain huge tree-like plants (up to 50m) that thrived in the tropical conditions of the time.
County Clare, Ireland.

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A scattering of white Goniatite fossils in a black shale pebble.
County Clare, Ireland.

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Communal Coral fossils from the Burren - traces of what once was an extensive tropical sea floor cover the region.
County Clare, Ireland.

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Communal Coral fossils from the Burren - traces of what once was an extensive tropical sea floor cover the region.
County Clare, Ireland.

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Communal Coral fossils from the Burren - traces of what once was an extensive tropical sea floor cover the region.
County Clare, Ireland.

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Communal Coral fossils from the Burren - traces of what once was an extensive tropical sea floor cover the region.
County Clare, Ireland.

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Communal Coral fossils from the Burren - traces of what once was an extensive tropical sea floor cover the region.
County Clare, Ireland.

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The fossilized sand ripples of an ancient sea floor - crisscrossed with the tracks of creatures that moved across it over 300 million years ago.
County Clare, Ireland.

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A Heart shaped Rugose Coral fossil from the Burren shoreline ❤️. County Clare, Ireland.

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A Heart shaped Rugose Coral fossil from the Burren shoreline ❤️. County Clare, Ireland.

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A Heart shaped Rugose Coral fossil from the Burren shoreline ❤️. County Clare, Ireland.

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A Heart shaped Rugose Coral fossil from the Burren shoreline ❤️. County Clare, Ireland.

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A Heart shaped Rugose Coral fossil from the Burren shoreline ❤️. County Clare, Ireland.

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The ghostly impression of a fossilized Goniatite showing in this shoreworn shale pebble. Cliffs of Moher, County Clare, Ireland.

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Fossilized Solitary Rugose Coral, County Donegal, Ireland.

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Fossilized Solitary Rugose Coral, County Donegal, Ireland.

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Fossilized Solitary Rugose Coral, County Donegal, Ireland.

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Fossilized Solitary Rugose Coral, County Donegal, Ireland.

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Fossilized Coral stalks in cross section, the Burren, County Clare, Ireland.

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