{"id":281576,"date":"2026-02-05T05:45:11","date_gmt":"2026-02-05T05:45:11","guid":{"rendered":"https:\/\/www.newsbeep.com\/ie\/281576\/"},"modified":"2026-02-05T05:45:11","modified_gmt":"2026-02-05T05:45:11","slug":"300-million-year-old-fossil-unearthed-in-clare-marking-first-for-ireland","status":"publish","type":"post","link":"https:\/\/www.newsbeep.com\/ie\/281576\/","title":{"rendered":"300-million-year-old fossil unearthed in Clare marking first for Ireland"},"content":{"rendered":"<p><img decoding=\"async\" alt=\"The fossil horseshoe crab and a line drawing of the specimen. Credits: Paris Museum of Natural History\" src=\"https:\/\/www.newsbeep.com\/ie\/wp-content\/uploads\/2026\/02\/RG clare fossil.jpg\" loading=\"eager\" width=\"100%\" data-testid=\"article-image\"  \/><\/p>\n<p class=\"indo-ebe0ecc6_root indo-ebe0ecc6_caption1 indo-300db776_none indo-91174671_secondary indo-66f0fec7_regular indo-1d70522a_marginbottom0 indo-1d70522a_marginleft0 indo-1d70522a_marginright0 indo-1d70522a_margintop3 indo-b48c4984_left\" style=\"color:var(--color-grey-60)\">The fossil horseshoe crab and a line drawing of the specimen. Credits: Paris Museum of Natural History<\/p>\n<p class=\"indo-ebe0ecc6_root indo-ebe0ecc6_paragraph indo-300db776_none indo-91174671_primary indo-1d70522a_marginbottom0 indo-1d70522a_margintop0 indo-b48c4984_inherit\" style=\"color:var(--color-primary-80)\">A horseshoe crab fossil dating back more than 300million has been discovered in County Clare, marking a remarkable first for Ireland.<\/p>\n<p class=\"indo-ebe0ecc6_root indo-ebe0ecc6_paragraph indo-300db776_none indo-91174671_primary indo-1d70522a_marginbottom5 indo-1d70522a_margintop0 indo-b48c4984_inherit\" style=\"color:var(--color-primary-80)\">The fossil, which is only 2cm in size, has been identified as Euproops danae, a species familiar to the UK, Europe, Russia and North America.<\/p>\n<p class=\"indo-ebe0ecc6_root indo-ebe0ecc6_paragraph indo-300db776_none indo-91174671_primary indo-1d70522a_marginbottom5 indo-1d70522a_margintop0 indo-b48c4984_inherit\" style=\"color:var(--color-primary-80)\">This is the first record of this species in Ireland and the first new horseshoe crab fossil to have been discovered in Ireland since the 1800s.<\/p>\n<p class=\"indo-ebe0ecc6_root indo-ebe0ecc6_paragraph indo-300db776_none indo-91174671_primary indo-1d70522a_marginbottom5 indo-1d70522a_margintop0 indo-b48c4984_inherit\" style=\"color:var(--color-primary-80)\">The fossil was found near Doolin and the Cliffs of Moher by Dr Pierre Gueriau, a specialist in arthropod fossils from the University of Lausanne, Switzerland. Dr Gueriau found the petrified remains while conducting collaborative fieldwork with Dr Eamon Doyle, Geologist for the Burren and Cliffs of Moher UNESCO Global Geopark.<\/p>\n<p class=\"indo-ebe0ecc6_root indo-ebe0ecc6_paragraph indo-300db776_none indo-91174671_primary indo-1d70522a_marginbottom5 indo-1d70522a_margintop0 indo-b48c4984_inherit\" style=\"color:var(--color-primary-80)\">Dr Gueriau said: \u201cI was amazed to find this fossil after many hours of searching. I immediately knew that it was a significant find and an important addition to the known fossil fauna of the rocks of Clare and Ireland.\u201d<\/p>\n<p><img decoding=\"async\" alt=\"The fossil horseshoe crab and a line drawing of the specimen. Credits: Paris Museum of Natural History\" src=\"https:\/\/www.newsbeep.com\/ie\/wp-content\/uploads\/2026\/02\/1770270311_41_RG clare fossil.jpg\" loading=\"lazy\" width=\"100%\" data-testid=\"article-image\"  \/><\/p>\n<p class=\"indo-ebe0ecc6_root indo-ebe0ecc6_caption1 indo-300db776_none indo-91174671_secondary indo-66f0fec7_regular indo-1d70522a_marginbottom0 indo-1d70522a_marginleft0 indo-1d70522a_marginright0 indo-1d70522a_margintop3 indo-b48c4984_left\" style=\"color:var(--color-grey-60)\">The fossil horseshoe crab and a line drawing of the specimen. Credits: Paris Museum of Natural History<\/p>\n<p class=\"indo-ebe0ecc6_root indo-ebe0ecc6_paragraph indo-300db776_none indo-91174671_primary indo-1d70522a_marginbottom5 indo-1d70522a_margintop0 indo-b48c4984_inherit\" style=\"color:var(--color-primary-80)\">Dr Doyle added: \u201cI had previously found the tiny footprints of horseshoe crabs preserved in the rocks here as trace fossils, so seeing an example of the actual animal that made them was thrilling. This discovery highlights the benefits of collaborative work with international colleagues.\u201d<\/p>\n<p class=\"indo-ebe0ecc6_root indo-ebe0ecc6_paragraph indo-300db776_none indo-91174671_primary indo-1d70522a_marginbottom5 indo-1d70522a_margintop0 indo-b48c4984_inherit\" style=\"color:var(--color-primary-80)\">The Clare Shale Formation, where the fossil was located, is a mudstone deposit that was formed in a relatively deep sea near the equator. It has taken 320 million years for the rocks to be transported to where they are now on the west coast of Clare.<\/p>\n<p class=\"indo-ebe0ecc6_root indo-ebe0ecc6_paragraph indo-300db776_none indo-91174671_primary indo-1d70522a_marginbottom5 indo-1d70522a_margintop0 indo-b48c4984_inherit\" style=\"color:var(--color-primary-80)\">It is likely that the horseshoe crab, which is not actually a crab but a representative of xiphosurans, a different type of arthropod closely related to scorpions and spiders, was transported into deep water by offshore currents before dying and being preserved as a fossil.<\/p>\n<p class=\"indo-ebe0ecc6_root indo-ebe0ecc6_paragraph indo-300db776_none indo-91174671_primary indo-1d70522a_marginbottom5 indo-1d70522a_margintop0 indo-b48c4984_inherit\" style=\"color:var(--color-primary-80)\">Most Carboniferous horseshoe crabs are found in very shallow water deposits. Modern horseshoe crabs come ashore in their thousands on sandy beaches along the east coast of the USA for spawning, excavating nests and laying thousands of eggs. It is not known if the ancient fossil forms behaved in a similar way.<\/p>\n<p class=\"indo-ebe0ecc6_root indo-ebe0ecc6_paragraph indo-300db776_none indo-91174671_primary indo-1d70522a_marginbottom5 indo-1d70522a_margintop0 indo-b48c4984_inherit\" style=\"color:var(--color-primary-80)\">The specimen is curated in the collection of the Geological Museum of Trinity College Dublin.<\/p>\n","protected":false},"excerpt":{"rendered":"The fossil horseshoe crab and a line drawing of the specimen. Credits: Paris Museum of Natural History A&hellip;\n","protected":false},"author":2,"featured_media":281577,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[3307,61,60,82],"class_list":["post-281576","post","type-post","status-publish","format-standard","has-post-thumbnail","category-science","tag-erika-sassone","tag-ie","tag-ireland","tag-science"],"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/posts\/281576","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/comments?post=281576"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/posts\/281576\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/media\/281577"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/media?parent=281576"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/categories?post=281576"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/ie\/wp-json\/wp\/v2\/tags?post=281576"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}