In 2012 a slab with at least 264 echinoids was discovered 100 meters north of Slade Castle at the Hook Head Peninsula, Ireland. This is the first discovery of similar calibre in European Palaeozoic rocks. Echinoids are exceptionally well preserved with peristomal plates, Aristotle's lantern and spines attached. Tests are small and measurements of width and length present an unimodal distribution, this indicates that we might be in presence of the first fossil record of a Palaeozoic echinoid nursery. Following there is a poster presented at the European Echinoderm Colloquium on July 2014.
The whole slab was recovered recently and it is now being stored at the National Museum of Ireland (Dublin) awaiting for preparation prior to public display. From here I would like to acknowledge the National Museum of Ireland, NUI Galway, University College Cork and the Irish Geological Association for their efforts in recovering these fossils.