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Is this a fossil and if so what of?

bawn79

I was wondering whether this is a fossil and if so what of?

Its on a stone within a trivallette fort in Roscommon called Rathra.

http://www.themodernantiquarian.com/post/93140/rathra.html

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slowburner

The fossils are best viewed in the third image from the left, toward the lower end of this page.
http://www.themodernantiquarian.com/site/13581/rathra.html

Very likely to be crinoid fossils.

bawn79

slowburner wrote: »

The fossils are best viewed in the third image from the left, toward the lower end of this page.
http://www.themodernantiquarian.com/post/93140/rathra.html

Very likely to be crinoid fossils.

I updated the link on my post and to the one in the quote here. Thanks for looking also slowburner and commenting.

Step23

They seem to be rugose corals in carboniferous limestone (so around 350 - 300 million years old!)

Stephen