I. Cortijo, S. Jensen, M. García, T. Palacios, and . J. M. Barrera, “The Armorican Quartzite: when trilobites ruled the Ordovician seas of the Villuercas-Ibores-Jara UNESCO Global Geopark, Spain”, Geoconserv. Res., vol. 4, no. 1, Jun. 2021, doi: 10.30486/gcr.2021.1922890.1085.